Bendis interview with Newsarama
Nrama: But given the concept of Hunger, it's not going to make those rumors that the Ultimate line is ending go away.
Bendis: It just depends. Does Galactus slowly eat his food, and watch some TV while he's eating? Or is he one of those binge eaters; he just eats really fast, standing over the sink?
What we've done from this is created a Galactus story that harkens back to the very first one, but at the same time is completely brand new. It's completely different players involved. , because it's going to be pretty gigantic.
Bendis all but confirmed that the Ultimate Earth will end. He said: "we'll see who gets away and who doesn't" so it's clear that some characters will escape before Galactus eat the Earth. I doubt they are going to waste such a great character like Miles Morales, so I count him as the first survivor. But who else do you want to see living in the Main Earth?