Roger Waters is stubborn as a bull, so I unfortunately can't see Syd's passing leading any more weight to the possibility of a reunion..
I'm pretty sure it's been Gilmour, not Waters, who's putting off the reunion.? I don't see why Syd's death would change anything though.
Im not a Pink Floyd fanatic, so you could be right, although it was Roger Waters who sued Gilmour years and years ago in contest of Gilmour and Company using the Pink Floyd name.