Everyone here makes a good point. Managing an entire project is a lot of work, so my advice to the TC is to really plan out the project before even bringing it to the table. It's no good making a thread just a few sentences long saying "This could be a cool idea."
What I would recommend doing is first thinking about how serious you're willing to get with this, 'cause quitting half way will only lose you a lot of respect here. If you're certain you want to go ahead with it, then make a list of all the tracks that are to be remixed and put them neatly into your first post at the very least.
Will there be any genre limitations? Even if there aren't, say that in the first post. Thought about artwork and perhaps promotional stuff? Be sure to say you want to recruit artists and the like if you do. Got a name for the project? Set up a private forum for remixers? These are all things to think about, and if you want people to latch onto this project you'll need to really flesh it out. I guaruntee you people will start showing interest then.
I hope this helps and if you go ahead with it, I'll be more than willing to join in. I love Rayman. ;P