"In [later] versions [of Clancy games] you'll find, say, missions generated in the next Ghost Recon (presumably GRAW 3) affecting the world map in the next EndWar (presumably EndWar 2)," said EndWar (PC, 360, PS3) programmer Vinh-Dieu Lam on Australian site Gameplayer.

The rumors of a Tom Clancy "mega-game" started last year with a teaser website referring to the universes of Rainbow Six, Splinter Cell, and Ghost Recon. Ubisoft Shanghai's EndWar, the first Tom Clancy RTS, "acts as a basis for future tie-ins," according to Lam.

Earlier this year, Ubisoft confirmed it was working on a Tom Clancy MMO, which may also connect to--or play host to--the future Tom Clancy universe.