The tentative agreement for the third Presidential debate has Bob Schieffer as moderator, but I'll bet that Freeperville etc. is not happy about this, given CBS's problems.
However, I surmise that the Bush people would be happy to keep Schieffer on, if only because he will be pressured to appear even-handed (compare to Matt Lauer's scornful treatment of Kitty Kelley after the White House asked NBC to cancel the interview). They will still criticize Schieffer because they have to "work the ref," and the media in general have capitulated to Republicans who use this tactic.
If Kerry's people see such criticism of Schieffer in the debate negotiations, they should call Bush's bluff and ALSO oppose Schieffer. Kerry can't take the chance that Schieffer will try to make amends for Rather at the debate.