…to be quite honest would be an excellent idea for a return IF…and I say IF Josh Whedon agreed to at least executive produce and direct a few episodes. I’m not sure you would need Sarah Michelle Gellar back for a reboot though it certainly would be nice for her to do some sort of cameo.
There were multiple reports that she and Josh Whedon weren’t the biggest fans of each other by the time filming ended on the original but time, and large sums of currency can usually heal all wounds.
The Dark Horse series was /is quite good so they do have an abundance of source material to take from should they decide to pick up the story again.
Credit to those whacky kids at the Hollywood Reporter for the source.