Josh Gross is reporting that Sean Gannon is leading the pack to face Kimbo Slice on the October 4th EliteXC card on CBS:

Three names keep popping up as the next opponent for Kimbo Slice on Oct. 4: Brett Rogers, Ken Shamrock and ... wait for it ... Sean Gannon.
...

And so, that leaves Gannon, a Boston police officer who defeated Slice in the most famous of the Miami street brawler's underground fight videos. If you'll recall, the UFC tried to capitalize on the YouTube-famed fight by signing Gannon in 2005, but Branden Lee Hinkle pounded him out in less than a round. Since then, Gannon has sat on the sidelines flirting with a big payday and a chance to rematch Slice on a larger stage.

CBS would be the largest.

At this point, unfortunately, signs are pointing to Gannon. The story works for CBS -- it's an easy sell and Kimbo shouldn't face much of a threat. It's perfect all around. That is, unless you think circus fights have no place in MMA, particularly in front of six million viewers.

 

I've put the original Kimbo vs Gannon fight in the full entry for both of you who've never seen it.