The new wriggles only really makes AoE power farmers like Skarner, Udyr and Shyvana better. This item was meant to help out single target junglers that struggle and just want to farm for a bit like Warwick, but once again they failed and ended up making it dumb on the wrong stuff. I'd rather have the old wriggles from season 2 back. RNG and all.
The new jungle isn't really different from the current one at all except AoE farmers will come back into the scene, but slow clearers like Warwick, GP, and early game Nautilus are still going to be trash in the jungle until they get items and levels. =\
Just face it a season 1 type jungle is never going to come back.