Mirror's Edge 2 has been reported to have been "put on hold" by DICE and EA after stating they are focusing on other projects. Whilst they did not rule out that Mirrors Edge 2 will still be releasing, it is looking like we will not be seeing it anytime soon.

Comments
The first wasn't perfectly executed, but it was a solid game and had alot of good ideas, would've liked to have seen those ideas built on in a sequal.
Still, i'm confident we'll see it eventually, in the meantime it's not like we're short on games.