Blizzard has announced the final results of the qualifier rounds on the US Arena Tournament realms, and there they are -- you can see that Death Knights are probably the most dominant class in the lineup. Their teamup with a Paladin and a ranged DPS (specifically a Warlock, though there is a Hunter in there) is pretty devastating so far. Shaman have made a nice comeback as well, serving both as utility and healing on a few teams. And of course the old Arena standby of PMR finishes out the top ten.
Blizzard will invite the winners from the qualifying round into regional finals -- they will invite the top eight teams, but apparently, according to a few commenters in the forum thread, both "well then" and "GET TANKED" are somehow the same players on the same accounts (but different characters, even though they're same classes), and the same is supposedly true for The Phuox Den and Almost Eighty on Live. So we're not sure who they're inviting -- either these two teams will get to play twice in the tournament rounds, or Blizzard will pull in some more teams to fill in the spots.
Or maybe Blizzard will have to come up with something else: we're not entirely sure about which players are on those teams, but certainly Blizzard can check that very easily. At any rate, congrats to all of the winners so far, and we'll keep an eye out for the next round of Arena battles.