Right now it's scheduled for a PlayStation 3 and Vita release on March 20th, with a domestic release to follow at some point in the summer.
Sadly, a domestic release of the Vita version is not in the cards, so you'll have to deal with the console experience only.
Lovers in a Dangerous Spacetime puts two people in a neon spaceship built for eight
4:30 PM on 04.15.2014
Here's a half hour of the Arkham Origins Mr. Freeze DLC, if you want to watch that
11:45 AM on 04.15.2014