Eurogamer has a story quoting Shane Kim at Microsoft Game Studios that the Xbox's most popular franchises, including Halo, Fable amd Project Gotham Racing, will be making their way onto the next console:
"Without giving away all the surprises we have in store, gamers that love franchises like Halo, Fable, and Project Gotham Racing can safely assume we will continue to invest in them as we move into the next generation."
The article goes on to speculate that sequels to Halo 2 and Fable would not likely be launch titles given that those studios just completed their last games in late 2004.