I must say, that I do like the premisse and the setting of DAV. I'm also happy, that you can choose your faction and not be forced to play a religious figure like in the last game. I really dig the veil jumpers and the Lords of Fortune.
I find some of the companion reveals interesting and no matter if I play the game or not, I will read Tevinter Nights and The Missing.
As for the gameplay trailer: I liked the grittier darker look, but disliked what I saw from the combat. I heard, that most devs came from ME and that was a game trilogy, I never finished, because I didn't really like the combat system.
I really hope, they don't plan on Varric getting sacrificed in that prologue. If he dies, I'm not buying the game. I had too many books, movies, games, where my favourite character died and I don't want to see it in one of my favourite gaming fandoms. I don't care, if it makes for good storytelling, leave Varric alone.
Baseline is, that back in the days, I would have preordered the game blindly, but sadly, Bioware doesn't have that bonus anymore with me. I wasn't a huge fan of DAI either and was really mad, that the ending was in a DLC, you had to buy. But mostly I disliked the empty world and the fact, you have to team up with the Andraste church, which is too close for comfort with our christian church (nodisrespect, but I'm not a huge fan of religions, but I can get on board with fantasy religions like in DnD or the elven pantheon in DA). So I will wait and see, what reviewers have to say.