The only thing we know(tentatively from datamined content) is that there is a PvP vendor that sells gear in exchange for PvP tokens. My guess is there will be no special PvP exclusive gear, or if there is PvE gear will still be usable. There might be some sort of stat flattening to make matches more fair though. We do know that low level characters will be upscaled to level 60 for PvP, so they must have some systems in place to make that reasonably fair.
Edited by Zeyk23, 27 November 2012 - 08:40 PM.