While I'm as hopefully the run is not over as anyone else, I don't think he was referring to Rush in that statement. You put it in quotes as though he said that, but he didn't. He didn't include "Rush". Look a couple of sentences before those words. He said "We’ve been following up on some other interests that we both have, and we’ve been learning to get used to the idea." The WE he's referring to, in my opinion and sadly enough, is just him and Geddy. He even says "we both have". Again, I would be thrilled at more Rush, but Neil's new book sure doesn't seem to leave me with an impression that it's even remotely possible.