Naughty Dog has never been one to really stick around with any certain franchise.  In the PSX era, they made the Crash games, but they dropped him like a bad habit shortly after starting work on their PS2 adventure game, Jak and Daxter.  Similarly, when the PS3 dropped in the fall of 2006, they created the Uncharted franchise.  And though they said they would love to continue with the Uncharted series, it seems that they may have something else in the cards for their next project.

When asked about what they were up to next in a recent interview, Naughty Dog's multiplayer designer Justin Richmond mentioned that it might Uncharted unrelated. 

"We’re always thinking about new Drake stuff but right now the big thing people will be working on is tech stuff like correcting the code base for whatever we work on next, whether it’s Uncharted 3 or something else." Justin Richmond responded. "The little tiny tech projects that would be awesome to put into a game are getting worked on now, but whether they go into Uncharted 3 or something else is to be determined."

Uncharted 2 is due out next week worldwide, exclusively for the PS3.