Of particular note are the Crucible Labs slated for release on May 29th, which promise to be part of an effort to bring players into a more active development process for PvP. Players will get to try out experimental forms of PvP before they become a regular part of the game, with feedback playing an important role in determining what gets upgraded to be a regular part of the game. We don’t yet know exactly what those experimental forms will be yet, of course, but the new content should offer some interesting previews of the future.
Source: Official Site