Setting off shortly to Sheffield, hoping to get a spot on Jenkin road somewhere and see the action. Weather looks to be dry until about 3.30-4ish when there could be showers. If the rain starts just before the riders hit Jenkin Rd it could be chaos.
My guess is that Nibali will have a go. If not here then maybe even the hill before (he does like a pointless attack that just can't stick on this kind of parcour). I'd expect to see a few ones and twos off the front - someone from Valverde, Costa, Canc, Chavanel, possibly even Voeckler(is hoogerland here - surely he'll try a pointless dig!) on Jenkin with a smallish peleton grinding up after them with what's left of Canondale pushing it as hard as they can.
I can't see Froome/Contador have a real go here, but I'd like to be proven wrong. Whatever happens I don't think a group can just ride tempo up this climb together 5KMs out from the end.