Personally, I think the franchise would do better as a new live action series on SciFi - if it had better "ghosts" like the cartoon, but was more subdued like the original movie. Something with a "Firefly" type budget and cast.
now that's a thought. it'd take a bit of time to get used to a new cast, but if it was well-cast and well-written, i'm sure that once i got past the new faces it could quickly become one of my favorite series. hell, it worked with stargate.