It has potential, I'll keep an eye on it.
The only thing I find irritating is their claim that it'll be released "when ready".
I simply highly doubt that "released when ready" actually works with EA. And besides that there's no way to tell for us gamers that it was "ready" anyway (except for the devs themselves internally, of course). I guess that time will tell. But the problem remains, how can we know it was "actually ready" upon release in the first place? Instead, when devs (or publishers) don't know when a game is going to be ready and is under development, but they still want to announce it (or make a trailer for it) then they should simply say "release date to be announced". Wasn't Blizzard telling us for about three years that Diablo III would be released when ready? And was it "really ready" when released? I think we know the answer to that one (and many others, too).
Don't say "when it's ready". I mean that's a very old rhetoric in video gaming. I still remember Nintendo (in Nintendo Power issues mostly) stating how their next Zelda or Mario game would be released (or announcing the date of release) "when ready", they categorically refused to even just say "release date TBA". As a consumer I have no way to tell it was actually "time for release, because it's now ready". If the fans of the original Mirror's Edge or the newcomers alike end up disappointed by the sequel they'll still complain, even if it was in development for five years. In fact they'll probably say "it was rushed and wasn't ready" anyhow. Haven't devs been through enough of this since the past... oh... two decades of gaming to know it'll happen like that by now?
But anyway, regardless of that claim at the end of the trailer, it looks interesting.