Looking forward to this game. Although, I cannot help thinking it will be too dumbed down and will appeal to ten year old's and not serious gamer's.
PVP however, knowing the GW community as it is now, will be a pretty unforgiving experience. A few guys who were very high ranked GW PVP'ers got pulled into testing the game and have been reassuring the community that the PVP is amazing so far. They can't leak too much, but everything they have said has been very positive. The devs have even said on numerous occasions they are trying to make PVP an e-sport.
Like most games, it's as deep as you want to make it.