Today I have an interesting Wrath of the Lich King Classic interview for you. Points like Burning Crusade Era Server, Release Patch 3.3.5, Level Boost, Bots-Goldseller are addressed. Towards the end of the video, Holly Longdale talks about the beta release in two to three months.
If we assume a beta in July and an 8-12 week beta, the release should be in September-October.