http://forums.worldofwarcraft.com/thread.html?topicId=7736594202&sid=1&pageNo=2#37
WOTLK Alpha Complete
The Wrath of the Lich King Friend and Family Alpha has just come to a close.
By Eyonix:
"The Wrath of the Lich King alpha test has now come to a close. We'd like to thank all of you for your participation and invaluable feedback on the game. The World of Warcraft team is hard at work preparing for the next phase of testing, and each of you will be invited back to participate. We're also happy to inform you that we will not be wiping characters as we transition from alpha to beta. However, all current alpha characters will be locked for a short period of time, allowing new players entering the beta sufficient time to catch up.
We look forward to seeing you all again in the Wrath of the Lich King beta test."
Looks like the beta is just around the corner.