Gematsu said:Expect Grand Theft Auto V to be announced soon, if the “Crystal Ball” section in the latest issue of the Official Xbox Magazine is to be believed.
The magazine reads: “Time’s up, says The Ball. Expect Grand Theft Auto V to be announced later this summer.”
I'm not surprised if the official xbox magazine is right. I got kinda surprised that GTA V wasn't announced at X360/PS3's E3 conference.
Source