DA combat and graphics have always been pretty lame, in my opinion. Sadly, DAI not only continued this, but made it worse by making a story-driven RPG into an open-world grind.
Mass Effect, on the other hand, found a recipe for great gameplay with ME2, and made it even better with ME3. I got the feeling that they realize there's no reason to abandon that great gameplay. One of the few comments we've received basically said that the gameplay will be very familiar. As long as they continue to tweak and improve, the gameplay should be good.
I'm a console gamer and love ME combat. The PC crowd seems to equally enjoy it. DA has never achieved this, in my opinion. It's dated visuals, animations and gameplay are all hurdles that ME has long since left behind. They are very different games, for which I'm grateful. If DA were my IP, it would combat-wise become medieval fantasy Mass Effect, wailing and moaning of the masses be damned. Diluting the story by spreading it across an open-world put too much pressure on the IP's weak points: combat mechanics and character animations.
Mass Effect and the vastness of the Milky Way galaxy make for a much better open-world canvass than Thedas, in my mind. Mass Effect has the mechanics (and hopefully animations) to keep the open-world from becoming a grind. At least, that's what I hope.
The real question is whether BioWare finally finds someone who can make lifelike hair? My BioWare avatars always seem to be wearing horrible plastic helmets in lieu of hair.