Call of Duty 5 "World at War" will be released on November 14.
The introduction of this release date is surprising, because initially Guitar Hero World Tour was not intended to be released for the PC. So Activision seems to have revised their decision.
Activision's releases:
October 24:
Spider-Man: Web of Shadows October 31:
James Bond: Quantum of Solace November 7:
Guitar Hero World Tour November 14:
Call of Duty: World at War November 28:
Madagascar 2