I suppose my issue with hiding things in out-of-the-way places, especially with major aspects of even more major character, is that it's so easy to see things that aren't even there. Like, you can only dig so deep before you've got to ask yourself "Is this actually supported by the text or am I just seeing what I want to see?" I don't want to over-idealize a character only to be blindsided by their faults - which is basically what happened with Trespasser. I remember, after it was announced but before it came out, I had this talk with a friend and I said "There's no way they'll just have Solas waltz in at the end, hack off the Inquisitor's arm, cackle about his evil plot to destroy the world, and then exit stage left." Man, that made for one awkward post-Trespasser conversation.
As for Weekes Depraved Bisexual comment - it does give me hope that he's more aware than his "We wanted it to be clear that Solas cares about everyone" remark would suggest. But really, hope only goes so far, and like I've said, I've been disappointed by too many writers in the past to go on hope alone.
... Can you imagine how blind-sighted people who didn't play DAI will be? I have my doubts that we'd be building the same kind of relationship with him throughout DA4 (assuming it will be focused on Solas, though I don't see the reason why it shouldn't) - heck, it's pretty much impossible. The wolf's out of the sheep's skin.
Now we can only move forward, with the threat to the world Solas poses - and I suspect Bioware will do little to dissuade people from thinking that he's a relatively straightforward threat to fight... and if they do, it will not happen in an overt kind of way. This series seems to be all about nuance and additional information - heck, some of it is even in additional materials, or comics, or books or in past games. They aren't shy of making us dig for information. It adds to replayability and sells all the additional stuff, so it's actually not that silly of a strategy, even from financial perspective 
Not to mention that, if he knew people would see Solas as depraved and evil and did nothing to prevent that, well, it doesn't exactly assuage my fear that those of us who still like him are unexpected anomalies.
The unexpected anomaly seems to be Solas himself
He IS supposed to be the antagonist of the next game. We aren't supposed to feel TOO sympathetic - it would miss the point if we sympathized with Solas outright, or didn't intend to stop him 
I also don't see us as unexpected anomalies - unless we're as unexpected anomalies as people who actually finish the game. Most people don't even do that. If I remember statistics correctly 20-30% reach the endgame, and that's not just massive RPGs, with the rate of those reaching the finish line being even lower. Majority of people then don't even bother to sink their teeth in the story, much less think about nuances of it. I assume therefore that the rate of those who kill Solas in DA4 (5?) will be much higher than those who'd save him... At least at first?
I've wondered myself if that's where they're going. If they're intentionally trying to trick people into thinking he's an irredeemable villain, so that they can surprise them later. I hope that's the case, but there's that thing about hope again.
This has been mentioned in this thread already, but it's worth repeating - what would be the point of giving people a redeem option in the first place, if Solas is just going to end up as more or less conventional villain, or just someone with a really stupid plan?
Even if it's indeed going to be a more difficult road, why give us an option redeem him - only to make us go through mental gymnastics to justify saving/redeeming him, while those who have sworn to kill him will feel no need to ever look back? (kinda like what happened with Iron Bull's betrayal after Inquisitor let his friends die 'for the greater good', basically... yet some people thought there aren't going to be any consequences, or the alliance with the Qun is worth the sacrifice.. I have to admit, I was kinda satisfied when I saw their outrage ;D)
It's just too easy if we went the villain route. True, that we MAY end up with such thing - I mean, even if they'd get the green light and a ton of money they can either screw things up, or would have to sadly simplify the story either due to technicalities or finances. I hope it won't happen and we're going to get a much more nuanced story, who will make even those who want to hack his head off stop and think a little bit.
Oh yeah, I don't think Solas wants to bring back Elvhenan either. Really, even with my pessimisstic outlook, some of the comments made about Solas are just like... Did we play the same game? Are we talking about the same character here? Like, I know Solas makes some untoward comments about humans and Qunari, but nothing about him suggested to me that he wants to wipe them from existence, or bring elves back to the top, and I mean, hell, he's not exactly all sunshine and rainbows when he talks about Elvhenan either. I figured it's obvious that it's the magic and spirits and immortality he wants back. He's no trying to restore Elvhenan. He's certainly not trying to restore Elvhenan precisely as it was, complete with eternal slavery and rampant murder and abusive god-kings. I don't know how people arrive at that conclusion.
I was just trying to cover the gamut of all the theories I've seen on him, even the ones I highly disagree with.
Yeah, sadly that's the thing - there are people... dunno how many of them there are, but they can be very vocal, who'd just deem him villain without ever looking at his motivations, just because he can't be easily categorized. Thinking in black-and-white categories is just so much simpler...
I mean, many people apparently wanted to lop his head off after post-credit reveal, when we didn't yet know his full motivations with any sort of certainty (though Trespasser basically confirmed what I thought is happening), but simply for lying to the player about the whole ancient elfy/Dread Wolf thing. If they wanted to punish him for that, then there's no wonder that they compare him to Hitler and the plague.
Though some of us do suspect that it has more to do with the wounded player's ego - he hid his motives and alias, he infiltrated Inquisition (though ironically that actually saved the South from the Qunari invasion) and basically played us like a pawn on a chess-board. So I suspect a lot of people want him dead not because they're motivated by concern for Thedas, but because Solas slighted them.
...I probably sound like I'm on the brink of hating him, don't I? Probably shouldn't have abused the phrase "evil dick" so much. But for the record - I'm not. I don't think I could ever hate him. I don't think I've ever hated any character, especially not for moral reasons, and especially not one I like as much as this jerkface. I think it's better to say that my understanding of his character is on the brink of falling into two radically different camps, and I while I'll probably still like him either way, I'd definitely prefer one over the other.
That and I was trying to explain why some people might think what they think about Solas. So I was trying to channel every opinion and reaction to him, not just the favorable ones, and not just my own.
No, not at all
Majority of us here sticks to Solas thread because we genuinely enjoy his character, but even among us there are... even if not necessarily disagreements, then certainly there's an in-depth discussions about his motivations or possibility that his character and agenda are much darker and deeds less forgivable than what we generally here assume they are/can be. 'Conflicting emotions' is certainly something every person here is very familiar with.
In fact, that's probably the reason why most of us stick to this thread or discuss him in the first place. Solas is meant to be polarizing and provide us with reasons to discuss DA and its future, while we wait for another game. In that regard I think DA devs have succeeded: those of us interested with the story certainly won't just drop everything DA-related hibernate till the next chapter. At least... not in very near future 