I agree poor Cassandra she got screwed over with this new Engine
she was so beautiful in DA2 I really wanted to romance her in a future game (back when I played DA2) but little did I know what would happen
I honestly don't get it. I think she still looks gorgeous - in fact, better than DA2. She's a kickass, tough-as-nails Right Hand of the Divine. The hardness goes with her character, and it makes her look uniquely stunning. Different strokes for different folks, I guess? Definitely plan on romancing her on one of my playthroughs.
Me, I'm looking forward Blackwall the most. We don't know a lot about him, but what we do know so far is appealing - plus, I'll be honest, it's just nice to have a well-bearded, more mature companion to romance. I think he'll be my first LI, but I want to play the game before saying for sure.
After him, I'd say Dorian - I like the idea of a rebel Tevinter who's still proud to be a mage - and Cullen, whose story has been going on long enough that I want to see how he's changed and get to know him better. And of course, Cassandra, as already mentioned. Iron Bull and Solas are kind of meh~ in my books, but not completely out of the picture.
The only LIs who don't really appeal to me are Sera and Josephine; just hasn't clicked for me yet. I'll see how I feel more in-game; no point writing off anyone entire since we haven't even really met them yet.