Like some of the others mentioned, another compilation has been released by them, and was just in time for that mini tour [and whether or not they surprise us with a lengthier one].
So you have basically almost the same old tracks from 40 Licks minus a couple, add a bunch and two tracks recorded in Paris in 2012. Each CD averages to about 60 minutes.
Oh, if you go to amazon.co.uk, they are selling a Blu-ray version of Grrr in high definition stereo. It's region free.