What if Gollum had lived?

[Zigûr]

Originally Posted by Moonraker

Once the One Ring was destroyed in the Cracks of Mount Doom, if we imagine that Gollum did somehow survive and was brought to safety (either by himself or though the help of the eagles), to what fate would Gandalf have sentenced Gollum to?

By "somehow survive" do you mean didn't fall into the Fire? Because as soon as the Ring was unmade he would have in all likelihood almost immediately died of extreme old age, regardless of what anyone else might have thought a suitable sentence for him. He had, after all, lived a little over five times a Hobbit's natural lifespan and the Ring was the only thing keeping him alive.

"Let us live, yes, live just a little longer. Lost lost! We're lost. And when Precious goes we'll die, yes, die into the dust."