AbdulAlhazred
Legend
Well, it seems unlikely that Moorcock himself isn't the reason behind their non-appearance. My guess is he's not that interested in handing off his characters and themes. I mean, while his work IS quintessential S&S, a lot of it is not really all that simplistic. It would be easy to mangle! I seriously doubt anything he's done since the 1980s would really translate to the screen very well in any case. It may be a bit late for some of the early stuff, he's far less known today than he was 40 years ago.I think they'd work better as TV series.
I would love to see the armies of Gran Bretan and all the sorcerous machines, marching and destroying.