The EGX Rezzed post states that, in addition to the PC version of OlliOlli, Roll7 will debut a new, yet-to-be announced game on the showfloor. We're in the dark as far as details go, but with EGX Rezzed opening its door on March 28, we can't be too far away from learning more.
OlliOlli launched as a Vita exclusive on January 21 and was funded, but not published, by Sony. Prior to its launch, John Ribbins told Gamasutra that there was "something quite nice about being an exclusive." It's surprising to hear of porting plans a little over a month after the game's Vita debut, but letting more people grind their pixelated faces off from botched tricks certainly isn't a bad thing.