Well, according to Australia's version of the ESRB, the OLFC, who rated a game with such a title, a successor to the Advanced Warfighter is - finally - closer to release.
Initially announced through an Ubisoft financial forecast document, but officially announced it earlier this year in April.
No details on the game, but the financial forecast had slated it before April 2010. Well, all the major game shows have gone and past, so there's not much room for Ubisoft to announce this. Expect it to be delayed into the late summer or early fall and gameplay shown at E3.