Given news reports I saw last night that Jimmy Johnson former head coach of the Dallas Cowboys, Miami Hurricanes, and the Miami Dolphins has been in Nicaragua filming Survivor, it wouldn't surprise me at all if TAR tried a Celebrity fan edition (i.e., Celebrities who are long time fans of TAR). In recent seasons, we've seen a bunch of such teams cast, and most of them have proven to be good Racers or good foils for good Racers.
In some ways, it's harder to sometimes detect such teams, because people would not necessarily think that X and a friend are Racing if they're seen somewhere else in the world, and a camera crew might now seem to set off the TAR Sixth Sense. Or maybe go the aid noteworthy charities eoute; where teams winning legs earn mooney for their charities and not prizes for themselves.
But I seriously doubt CBS is going to pass up a second edition of TAR in the spring; the network finally has something to pair with TAR on Sunday nights, and unlike Winter 2010, there is no Winter Olympics, the NCAA tournament is changing formats and broadcast patterns for March 2011, the Oscars will air earlier in 2011 than in 2010, so an attention-getting edition of TAR could build an audience in the spring with less disruptions and distractions than TAR 16 had.