Marquez-Juarez has been rescheduled for November 3 on Showtime (not PPV), with the Guererro/Honorio undercard retained. http://sports.espn.go.com/sports/boxing/news/story?id=3016029 Makes sense to me. Unfortunate that we haven't heard about Ouma-Mora though; considering Juarez's style, I actually thought that would be the most exciting of the bouts.
So I guess it's Calzaghe-Kessler on HBO in the afternoon and Marquez-Juarez on SHOWTIME at night. Sounds like a good day to me!