did you hear about the raid mode thing not being on the vita... or something like that. A bunch of vita levels are missing thats all I know.
Yes, the Invasions Levels - 28 levels, which (I could be mistaken) are levels you've already played, but now you run through them backwards on a timer. To be honest, Legends already has a ridiculous amount of content - Vita's my platform of choice, and I doubt I'll miss the Invasions, but time will tell.
oh, good. It's not like you can't go back and play origins again.