It looks like Resident Evil Revelations 2 will indeed be coming to the PS Vita this summer. According to a post on the PlayStation Blog, the game will be “coming digitally this summer.”
The Vita version of Resident Evil Revelations 2 will include all four story episodes, including all of the DLC items that have been released for the PS4 and PS3. This includes the alternate costumes for the four main characters. The Vita version will also support the game’s highly immersive Raid Mode, though online co-op and ad-hoc won’t be included at launch. Instead, the co-op modes will likely be patched in some time after the game’s release.
The game has also been tweaked slightly to allow for easier shooting on the handheld system such as gyroscopic targeting. You can check out our review for episode 1 here.