Wouldn't balancing skills between PvE and PvP be better than changing the jungle?
The jungle is always having constant changes because the top tier junglers being the most oppressive and fastest clears are the ones that define the meta. Every time the jungle is changed it affects more the struggling junglers a lot more than the oppressive ones. At the beginning of the season there was a huge problem with how fast lee sin got to lv 3 and cheese ganked so there was an EXP nerf. To avoid these types of things in the future why not have jungle monsters take in less damage from certain skills and more from others? Have lee sin and graves for example do less dmg to monster creeps instead of again changing the jungle in the future to oppress them which in turn only hurts the other junglers.