A Sony employee named Shahid Ahmad teased from his twitter account that a new and amazing title would soon be coming to Vita, but that he could not delve into too many details.
He did, however, describe the game as one that will leave you "Hooked for hours a day", and that it was not an indie title. While this is not much of an announcement, it is worth mentioning that Shahid is a Senior Business Development Manager for Sony Entertainment of Europe. He has also "signed" many indie games onto the PS3 and PS Vita such as Thomas Was Alone and Hotline Miami. He also has signed on over 30 games for PlayStation Mobile.
While this is still an obscure announcement for a game, this could be end up being another great title added to the PlayStation Vita's library.