More Call of Duty and Guitar Hero Sequels in 2009

Activision today revealed that it is planning to release future iterations in the Guitar Hero and Call of Duty franchises during 2009.

According to Activision Publishing CEO Mike Griffith, the publisher's 2009 lineup will include "multiple new Guitar Hero SKUs [and] an all new Call of Duty [due to our] leapfrog studio strategy," along with the next Tony Hawk game.

The next batch of Guitar Hero and Call of Duty games are arriving this fall in the form of Guitar Hero World Tour and Call of Duty: World at War.

The "leapfrog studio strategy" refers to the company's practice of rotating development responsibilities. Series creator Infinity Ward has helmed Call of Duty 1, 2 and 4, while Treyarch has produced Call of Duty 3 and the upcoming Call of Duty: World at War.