"It's coming along very well," Gilmour tells Rolling Stone while promoting Floyd's final album, "The Endless River." "There are some sketches that aren't finished, and some of them will be started again. There's a few months' work in it yet. I'm hoping to get it out this following year. Then I'm hoping to do an old man's tour, not a 200-date sort of thing."

Gilmour says he plans to play smaller venues, as he did on his 2006 trek in support of "On An Island." "There haven't been many discussions about the tour," he says. "But places like Radio City Music Hall sound like the right sort of vibe for me."