I wonder whether we'll see the same phenomenon of a lot of riders (not just the sprinters, which is expected, but some decent climbers, too) cracking on a steep stage the day after a rest day here, like they did the first day in the Pyrenees.
I think the rest day messes up a lot of the riders' rythm and form, especially on a steeper stage. In any event, there will probably be another shaking up of the GC pecking order by the time they see the Alpe d'Huez....