Actually, the question we should be asking ourselves is: will it work?
What about biotics and talents? How are they planning to replace or change the power wheel, which, currently, pauses the game?
What about conversations? TOR system notwithstanding, it could be a huge blow on a multiplayer match if they dotted the gameplay with people to talk to.
And what if it's combat only? Remember no one liked that Pinnacle Station DLC or whatever it was called.