It's too early to say but it looks to me like the McCain campaign suspension play is backfiring in part due to Obama's response to McCain which is clear and is "see ya Friday, dude"...
This was a bold play by McCain but since he waited until the last minute he's on *very* thin ice arguing that he's got no place attending the most anticipated presidential debate in history. His proposal to delay the Palin Biden debate - a duel that is almost as interesting to the public as the McCain Obama debate - will only add to the speculation that this is a political rather than bipartisan presidential play.
Suggesting that McCain will debate Obama if congress enacts a plan by Friday seems unlikely to do more than complicate and confuse the many issues at hand and offer the Democrats a type of dysfunctional control over McCain's plans.
If Obama is sitting on the stage Friday without McCain it is unlikely to bode well for McCain unless Obama makes the mistake of saying something outrageous which is unlikely. In fact the imagery of John McCain wandering around D.C. trying to broker a deal with a congress that is mostly hostile to his candidacy would not appear to paint a pretty campaign picture.