i think people overvalue the idea of a new ip. it sounds cool and exciting, but in practice it doesn't mean we aren't getting another third-person shooter with chest-high walls. we shouldn't reward david cage for making heavy rain when it's a huge mess, just because it's a new ip.
for me, i think the best new ip sony's made since shadow of the colossus is tearaway. it's a game that needs its hardware to work. the level design isn't especially treacherous, but the input is so demanding of the vita that i can't imagine playing it any other way, and it makes what is a familiar experience seem new, not just its aesthetic. it's also a rare game that uses its existence as a new ip into its setting and design- it's actually part of the story and why it wouldn't work quite as well if it was based off littlebigplanet or something.