They haven't announced anything yet, but I guarantee these will be some of the ones chosen:

Morales-Barrera trilogy
Gatti-Ward trilogy
Trinidad vs. Hopkins
Pacquiao-Morales trilogy

DLH-Vargas could be a possibility.

I'm guessing they won't do Mayweather-DLH, because it's still fresh in people's minds, no one has forgotten what happened. Also, they already covered all of the fighter's background stories during 24/7.