OlliOlli2: Welcome to Olliwood is coming to the PlayStation 4 and Vita in 2015, developer Roll7 has announced on the PlayStation Blog.
New additions to the series include a refined gameplay, new Ramps, Jumps and Epic Hills, a deeper combo system, new tricks, a graphical overhaul and a new mode called Combo Rush. Combo Rush, which sounds like one of the most meaningful additions to the sequel, is a local multiplayer mode where up to 4 friends try to make as many tricks as possible in a limited amount of time.
Sidescrolling skateboarding game OlliOlli came out in January 2014 and it received positive reviews for its simple controls and creative level design. The original OlliOlli came out for the PS3, PS4, Vita, PC, Mac and Linux. As of this news article, it hasn’t been announced if the sequel is coming to platforms other than the PS4 and Vita.
Source: PlayStation Blog