REV2 for vita would most certainly explain why the models are decent but the textures are so low rez in the screenshots



they're using the same technique as REV1 -> HD, where they just have the full poly models for CG scenes and stuff, so they use that whenever possible for current/next-gen consoles while the portable version gets their own portable model



but since the environment as a whole and enemies generally won't show up in those CG scenes then the resolution will be fitted for PSVITA or upscaled, with higher quality models/base models being used for the home console versions



it being on vita also means that the gameplay style is ultimately going to be drastically limited once again though and that's a huge bummer so i really hope it's not true