From Quakecon website:

"Quick QuakeCon 2013 update for tournament fans…

We will have 3 tournaments this year, two in Quake Live and one old-school DOOM II tournament. New for 2013 will be a Clan Arena tournament for Quake Live, and returning will be the always exciting Duel mode. Now get back to practicing!"

http://www.quakecon.org/2013/06/quakecon-tourney-update/

well?