GAME lets slip GTA V release window too!
It was revealed by Polish site gta-five.pl a couple days ago of possible promotional artwork for the upcoming GTA sequel, and it seems today to be pretty legit as UK retailer GAME has released similar artwork in a Tweet (which has since been removed) showing PS3 artwork with the Spring 2013 on it, and Pre order now!!! Written in the tweet! Although not a 100% confirmation, their website has been updated with TBC 2013. So it seems to me that GameInformers December issue may spill the full details of GTA V. Time will tell!!