I've just published Alpha_05. This builds adds an NPC in the Alpha Zone which will take you to the Act3 Town. In the Town you'll find a second NPC who will take you to a PvP arena, which is a modified version of Rift Keep. PvP is forced in the arena, so there should be no need to enable it for the players.

This release makes it easier to test PvP. You still have to level and gear via playing the normal game, or via console commands though.