Will there be killzone shadowfall on Psvita???
Mod Edit: Updated title to be as descriptive as possible and removed lable News & Announcements. Check here for more information. Thanks! - TwistedTarantula
It's unlikely. You can however, use remote play on your Vita to play it if you have a PS4.
Otherwise I think Killzone mercenary will be the only Killzone game we'll see on the Vita for a while.