Re: "Is Battlestar Galactica in Suspended Animation?"
Don't think you would need to ressurect Greene. Just let Hatch loose with his BSG: The Second Coming (I think that's what he was calling it) concept. Hatch (and whomever else you can find from the original) in supporting roles with a new, younger cast moving to the foreground of the story.
USS Galileo Galilei, NCC-8888
Prima Inter Pares