Some of the papers are saying that the Rolling Stones tour that just finished was their last. Others are claiming that they will go on, if not for ever, then at least for a few years yet. It's possible that they'll quit the big campaigns. Maybe Charlie will lose the appetite for touring and they'll slowly slip off into legend, playing the odd big show when they feel like it.
The one thing I can't see them doing is announcing their retirement, for the simple reason that they never have done. Whatever the rest of the world thinks of them, their endurance makes them unique. They began in 1962 and 45 years later they are arguably the most popular live attraction on the planet. In that time they've never broken up or even had a trial separation. Can anyone else get anywhere near that?