Predator 3: More details on those Predator 3 rumors have arised today:

"Hollywood Insiders have let loose more cafe talk that Robert Rodriguez is still discussing this project, pushing his own screenplay a little further. His project is said to take place on board a 17th century ship, which the Predator making a visit to its crew. The other script is another golden oldie, The Zoo, which is meant to include Arnold's character Dutch and Danny Glover's from the underated sequel. The two men are captured and taken back to the Predator's home planet, as trophies."

Thanks to DH for the scoop!