Diablo III will be launching without PvP. A lot of people have welcomed this news as we are assuming the game will be released earlier without the inclusion of PvP arenas. We hope so but we will have to wait and see!
PvP will be patched in after launch according to the blizzard post: http://us.battle.net/d3/en/blog/4574895
Personally I think this is a good thing as most people will want to get leveling and enjoying the game, then upon reaching max level turn to PvP. We will then have time to level up, collect some gear, learn our rotations and hopefully by that time step into the Arena (as it is being patched after launch sometime).
The PvP is sure to impress with fine balance tweaking constantly for the life of the game and if any input comes from the WoW devs on balance then it should be pretty hot. A lot of people complain about overpowered and balance on WoW, but it is one of the most balanced games I have played. Except maybe for League of Legends, but their whole game revolves around balance, without it their game would fail, yes new champions can feel a little powerful (to get them to sell) but thats to be expected.
If you are looking forward to Diablo III, then stay tuned to the blog as we have a feeling a release date will be announced very very soon.
