You guys seriously are overestimating new jungle. The new jungle is going to be stronger, but Shaco cares not because he does great 1v1 damage and his boxes keep him from getting too much aggro.
Also, you can now CHOOSE to gank or farm, which for Shaco would be better to gank opposed to farm.
Shaco is a jungler at heart. Though, he can easily hold his own in any lane as AP Shaco because no one will be stupid enough to follow him. Though, to be viable as AP Shaco the only route is Support AP Shaco, though it is hard to give kills to the AD when your boxes do most of the work.
He's a great AD Jungler and with an Infinity Edge and a couple Blood Thuster's, he can really come out of the shadows and pick someone off.