Finally! I have been waiting for this forever. I currently have an imported Vita and UMVSC3 looks incredible in the Vita, I'm hoping for an almost perfect port. The Vitality thing had me fearing that this wouldn't be a port of the fighting game and go instead for some mythologies bs, thankfully that didn't happen, or at least the fighting game will be there too.
All in all the Vita is as of now the portable fighting dream device, blazblue, umvsc3, sfxtekken, and now MK, no other genre is as strong on the device.
Now I expect for it at least to have online or I'll pass, but I doubt they will dare to release it without it where every other fighter has it. Besides a proper training mode is necessary here, and if they could achieve the game to be able to cross play with ps3 online, that would be amazing.