I'm not sure what I should think of the general mood towards DAI. The game is huge, looks fantastic and has a number of things I've wanted to see (or to see return) for quite some time, all in all the pre-release impression is very good. I find it hard to believe that DAI could sell badly if the marketing people do their job. The response here is somewhat mixed, but that's how it always goes, isn't it? I've almost never seen this place explode with positive hype. Having said that, I see a lot of appreciative posts.
Personally, I'm not worried about anything but the story. That is a great unknown and as always, it's possible that I won't like it.
As for overall success, as I said, I have no way to judge the mood. It appears better to me than usual, but "the usual" had DA2 and ME3 in it for so long that I don't know how much that counts. Based on current information, I would want to see DAI succeed because I like the world and want to see more of it. Also, I've seen quite a few previews and they're mostly good.
Edit:
As for TW2, I abandoned it at the Kayran fight. I like the world and played the first game and loved it, but I can't see how the insane hype over these games is justified. If DAI has that kind of boss fight, it's quite possible I'll never finish it. Corypheus in DA2 was bad enough.