The problem with trying to replicate the weekly WWE shows is that the MMA talent isn't active like the wrestling guys. You're not going to see GSP on a weekly basis, or even a monthly basis. The roster isn't deep enough to accomodate for this kind of a structure and they would be wise to stray away from that if that is their plan.
You add 3 more divisions (women's) that gives you 11 champions fighting twice a year 22 weeks, have the other period of time number #1 contender fights you now have 44 weeks of programing. Those last 8 weeks could be discretionary fights, skip weeks for holidays or Ultimate Fighter finales. With Strikeforce Zuffa is already running close to 40 events. The big thing with MMA is that the star is the sport not the fighters.