Salty Hippo
Member
Shinobi confirmed that they have a second new IP in development but it's not ready to be shown. I'll try to find the post
Edit: found it, at the end of the first paragraph http://m.neogaf.com/showpost.php?p=228023617
Too early to call "new IP" on that. Prototypes are just experimental things that were not even greenlit yet. Most studios always have at least one of those going on, it's extremely common and not an indicator of anything.