I would absolutely LOVE for Dana and company to do this:
Institute a tournament format for particular divisions that have an excess of talented fighters.
For instance you could easily get a large number of the 135 , 145 , and 155 lbers to agree to a tourny format. Hold a big press conference and have each fighter present that wants to participate.
Every fighter gets assigned a number and similiar to a lottery, 2 fighters are picked at random. This would be live to watch of course, and then these chosen fighters get to find out who they fight live. Instead of fighters "ducking" other fighters, everyone is fair game.
I've always wanted to see a formal playoff system or tournament style especially for the smaller divisions. Most of these fighters cut from 160ish anyways, and you could easily have a whole new slew of matchups we would not see otherwise.
As much as Dana loves money, I don't understand why he hasn't given this a shot. Bellator has tried something similiar tourney style, but they don't have the roster to pull something of that magnitude off.