I would be shocked and let me tell you why:
Verdasco is not as good as Federer on clay, and the thought of him taking 3 sets from Fed makes blood pour out of my ears.
Monfils could not beat MonoFed on dirt last year. I have no reason to think he could beat RegFed this year.
Murray will not beat Fed before the final as he is always drawn in Rafa's half at Slams.
FedFan, for a second out of the corner of my eye I thought your signature said: "Roger your tennis is dirt."
Clay is Murray's weakest surface, Verdasco is best on hard courts and has been owned by Federer, and Monfils is impossible to gauge. I wonder if Simon might trouble Federer though? Should they somehow end up on the same half.
Also, I know Federer utterly annihilated Del Potro, but if there's any surface where JMDP is going to overcome his pathetic record against the top 10, it's on clay, where he actually could give Federer's backhand trouble. Beating him is another matter though.