Great now you've got me wondering if DAI has "Action Mode" 
Can't even see why anyone at Bioware ever thought It was good idea for ME3 "Lets remove the only gameplay mechanic that tells a story & turn it into a movie instead! We'll be just like the rest of the industry who treat story & gameplay like Oil & water"
The only two systems that were in that game were "Shoot shoot cover shoot" which can't really tell a story (not a good one at least) & talkie bits that actually let us interact with the story and its characters.
Seeing as DA:I will be made up of about 60% combat according to Patrick Weekes, killing demons, mages & templars for 80 hours might loose what little story telling punch it has. That leaves it to the Talkie bit of the game to pick up the slack & I'm confident it can.
An action mode destroys that, turning the game into Oil & water, Watch a Movie then kill some dudes watch another movie kill some more dudes slug fest for 150 hours. I don't want to just be the games hired gun when I play a game.
A Mindless fun multiplayer mode is only good for that, mindless fun.
DA:I multiplayer can only be engaging if its Combat mechanics are in a multiplayer environment & from what I've scene so far that would not be the case IMO.
Could be totally wrong, multiplayer might not even exist for this game but if it does Bioware could do a good job on it & loads of people might enjoy it. No skin of my back.
As long as the single player is good then YOLO. 