Riot, I read that you're trying to change things for more jungle v jungle.

Why not make less camps/more exp from camps, and have it be more necessary for junglers to fight other junglers for camps? This would be sort of similar to the laner vs laner style of play. For example, like your scuttlecrab idea, except maybe for all camps. Wolves could spawn randomly on one side or the other, but give notice to everyone, so that your junglers would have to compete for the wolves. Of course while also making a pretty even split between what spawns on what side so that junglers can still get exp/gold. There MIGHT not be a problem for global warning of these camp spawns because the laners also still have to lane, so they won't be able to help their junglers jungle.

A big example would be Red side gets krugs and wolves, while blue side gets raptors and gromp. The junglers could just get krugs and wolves/raptors and gromp respectively, but be lower on exp/gold than they would on live, forcing them to contest for their enemy's camps.