Ron Waterman is fighting Takamori in the main event of Pancrase on 28th May. There is no way he is fighting on the Bushido card a few days earlier.
Good...didnt want to see him fight Cro cop again...
Arias
Considering how few rematches Pride puts on (apart from Saku vs Silva 4, coming soon), I highly doubted they would be rematching CroCop a few months after already beating Waterman.
They can easily put CroCop in the GP in a single match, as per Busta for the GPs last year.