Many statements/quotes from Larian about the capabilites of the editor are saved here (see Editor&Modding): http://www.weresheep.net/doku.php?id=woos:ks_devquotes
Screens from the editor (from the ks countdown):
http://imgur.com/a/ATiKvPUVer: I'm the biggest supporter for PvP around here, but I think modding it in is pointless without design mechanics like leaderboards, matchmaking/balancing , team-voice support, ....