The 2012 World of Warcraft Arena Pass registration is now open. As mentioned previously, if you sign up and participate, you will receive exclusive access to a Mists of Pandaria level-90 Arena Pass realm if you upgrade to Mists of Pandaria.
Important Dates (North America):
April 10 – May 22: “Registration Phase”
May 22, 2012: Registration closed.
April 24 – May 8: “Practice Phase” – it’s practice. Any matches during this time will not count towards any prizes.
May 8 – May 22: “Ranked Ladder Phase 1” – Arena Ratings set to 0. 3v3 ranked matches count towards rewards. Switching between Arena Teams will cause a points reduction on the receiving team.
May 22 – June 5: “Ranked Ladder Phase 2” – 3v3 ranked matches count towards rewards. Players cannot switch Arena Teams.
June 5, 2012: Event ends.
Official Announcement Excerpt (see the rest at the link below):
Now is the time to get your teammates together and register for the most thrilling Arena competition World of Warcraft has to offer.
Participants will be fighting their way through the ladder ranks, testing their mettle against the best Arena players in World of Warcraft. Players that register for the Arena Pass will also be eligible to earn Murkimus, the Armored Murloc in-game pet, as a reward for participating. The top 1000 teams will also earn the exclusive “Vanquisher”” title for their live characters, proclaiming their puissant skill in battle for all the realm to see.