If it's not a fake, that's one hell of a strong cover for the next Play UK magazine issue.
You can see it at this European source ; not only does the protagonist of Assassin's Creed III grace the cover, but there are a couple of juicy headlines:
"GTAV on Vita"
"Black Ops 2 Will Fail"
Furthermore, game names Crysis 3 , Dead Space 3 , and Metal Gear Rising can be seen on the top. To help verify the fact of the matter, the source links to Apple's digital distribution page , where the same cover can be seen. Now, none of this sounds particularly off the wall, although we're certainly interested to know who said this year's Call of Duty is going to "fail." Also, don't forget that Black Ops 2 hasn't been officially announced.
So maybe we're in store for a ton of news and announcements within the next month or so. GTAV on Vita would be huge…I'd still have to play that particular game on the PS3, though.