It would be a good idea to use the modern recording technologies in terms of live recordings.
The Rolling Stones could sell SBD recordings from all their shows on the net (in a lossless format like FLAC) like Metallica, or on traditional CDs like the Who, Pearl jam, the Straycats and many more
This kind of service isn't that expensive nowadays and would please all the fans who are spending time and money in trading or buying sometimes lousy audience recordings of the shows they've been to.
I really hope they'll take some time before the start of the tour to think about this possibility.
We already heard about it during the Licks tour, it'd be great to see the project come true on this one