It's all about the $$$$$$$$$$.

Games are released in quarters meaning they divide the year up into 4 parts. They do this for several reasons but one big reason is quarterly stock reports. The only quarter they could make this year is Q4 which is Oct, Nov, Dec.

Soooo like most everyone here I'd expect it around Nov/Dec. Or as another wise soul pointed out 6 months from the release of the BETA.