Off the top of my head so far (this includes confirmed and likely possiblities)

Vargas/Mosley
Lacy/Calzaghe
Morales/Pacquiao II
Barrera/Chavez
Arce/Wonjongkam
Brock/Tua
Mormeck/Bell
Mayorga/DeLaHoya
Corrales/Castillo III
(hopefully) Larios/Marquez

I may be missing plenty

Larios vs Marquez would be a chess match both good busy boxers.