According to TransGaming.org, the situation is beeing looked at:

We are in contact with the Blizzard engineering team. The update had been tested extensively with Cedega and Blizzard believed that it would not adversely affect Cedega users. We are working together to try and solve the issue as best we can.

If you are a Cedega user that has had your account banned please list your World of Warcraft username in the forum post or email support@transgaming.com with the information and we will assist in getting your accounts back up.

I don't suggest posting your WoW username anywhere, because then you're just going to have your account ZOMG haXX0red and have to go through this crap again later. Use the email.

If you want to wade into that horrifying hell-hole known as the WoW official forums to get more info, be sure to check out this thread, where Tseric likes to get snarky and then mock handicapped children. He does try to word things better later on. This may be my only post today because my eyes are now bleeding.

p.s. Tseric, next time go with "If there's one thing that I've learned from this job, it's that people will go to *ANY* lengths to get out of a ban, including inventing stories of personal tragedy."