I was running through possible replacements for Chuck last night, and the three that came to mind were James Irvin, Doug Marshall, and Brian Stann. With the news that the WEC Light Heavyweight division is going to be absorbed, we can more realistically consider those last two as possible replacements. However, Marshall probably has less name recognition than James Irvin right now, so we can eliminate him from contention.

Brian Stann is probably enough of a bigger star than Irvin to make salvage the main event status of the match (if we consider that Bisping v. Evans was a main event), but then I have no idea if the WEC is even available in England, so we discount that.

That leaves us with James Irvin, at which point the only storyline to build off of is the one suggested by Luke. It's mediocre at best, and to me relegates the match to semi-main event status, but then I am among the minority of people who will watch UFC 85 who are (more) interested in Brandon Vera v. Fabricio Werdum.

My other thought, which is probably the least likely option, is to swap Rashad v. whomever with Keith Jardine v. Wanderlei Silva. Too much fenagling required for that to happen, I figure. It's probably less likely that moving Tito to UFC 85 to rematch Rashad.