Gunship X will be released on PlayStation 4 and PS Vita next year, with the cross-buy option,Serban Porumbescu (game’s dev) has recently declared.
When we heard the first time about Gunship X, it was June 2014 at E3, where it was confirmed as a PS Vita title. Now, the game is announced for PlayStation 4 too, in 1080p at 60fps with cross-buy support. The game is a top-down shooter in which you take control of an AC-130 gunship and defend humanity against invading intruders.
Source: PlayStation Blog