Firefall and an unannounced, cloud-based project titled Stage 5. Zhilinsky is now Red 5's senior programmer, and the studio isn't done searching for fresh talent.
Considering Firefall entered beta this summer and it is scheduled for release in winter 2011 (that's now), we assume Zhilinsky and his new team will be working on this mysterious new game, Stage 5. Or maybe he was hired to completely redesign the Firefall character models to include water wings and ball gowns before its release any day now. Maybe.