For a band of Rush's resources they can do whatever the fuck they want. Touring brings home the bacon, and so we can only hope they start getting a lot more drive for new music in their golden years or else I fear we won't see many more albums.
I'd LOVE for this to happen, and while Geddy and Alex seem more driven to tour than Neil does, I can see them resorting to writing and recording every couple years when they can't tour any more (especially now that Neil is a father again).
It could be that the
Clockwork Angels Tour would be their last extensive tour, or perhaps the one for the album after that (which, at the current rate, would likely be released anytime between 2014 and 2017), so if all they do after that is recording studio albums, I'd be happy with that.
I'd rather see them do that than what Yes did in the last decade - they only released one album (
Magnification) and then toured off-and-on over the next decade before regrouping to record a new album.
-Marc.