I'm not a Buffy fan by any means but this just sounds like an odd idea. Wait at least 10 or 20 years before you decide to remake something. Buffy ended in what 2003? And Angel a few years later right? It doesn't seem like they've been off the air that long.
I wonder if this is how Kristy Swanson felt when the tv show was announced? I think Stan Lee was right when he said that in Hollywood no one wants to be first but everyone wants to be second. Buffy is currently on two channels on my system, Thiller and Bravo. Usually at the same time, with earlier and later seasons.
They can do this but they can't make a Wonder Woman movie?