Robin Williams On Board "Bourne 3"?
From Cinescape: "What he does know is that they're looking at Robin Williams for the part. He'd play some sort of family member or link to Bourne's past."
Obviously everyone is taking this piece of casting gossip with a grain of salt ... but it would be pretty cool to get a "Good Will Hunting" reunion going here. (Someone call Affleck and Skarsgard!)