The Vita stretch goal for Strength of the Sword 3 Ultimate has been lowered to 30k on Kickstarter. Looks achievable now (think it was 90k before):
https://www.kickstarter.com/projects/1145990096/strength-of-the-sword-ultimate/posts/1131479
Here's some details on Persona 4 Dancing All Night from Dengeki:
OlliOlli 2 details:
http://blog.us.playstation.com/2015/02/11/whats-new-in-olliolli2/
N++ might be coming to Vita if PS4 version is successful enough (wat):
@SlyTSF But don't worry, N++ is the version you want anyway :) We hope it's popular enough on PS4 to allow us to afford to port to Vita!
— Metanet Software (@metanetsoftware) February 8, 2015