The team is also taking a close look at ability balance on the Prime server, as the tweaks there shouldn’t affect the live server; while there are always balance issues, some Prime abilities are far too potent, and high-end PvP is dominated by healing at the moment. Thus, players should expect some tweaks to wrestle things back into line in the near future. Expect more changes to be rolled out as both sides of the game are carefully addressed.
Source: Official Site