The problem is, all these changes do is make the new jungle harder and less rewarding. You get LESS gold now in the new jungle than you do in the current jungle, and you have LESS opportunity to gank because the camps are harder and deal more damage to you. So now you lose even MORE income because you can't gank early.
Basically I see Warwick as a jungler and very few others. This doesn't make more junglers viable, it just reinforces the gp10 tank jungler meta because you still get starved for farm while jungling. So the only way to stay relevant to the game is try to build tanky and have cc to initiate or peel in team fights, being completely unable to do anything else. This means all the damage dealer junglers are screwed over yet again. I'm sick of having to spend my very little, hard earned gold on an Aegis and 2 gp10s for a couple wards here and there.
Junglers are almost as bad as supports because after the first clear, your jungle isn't even yours anymore. The rest of your team pushes up their wave to the tower and farms your jungle. I don't see these changes alleviating that at all. In fact with the removal of Heart of Gold, I just see junglers getting hurt even more now than they were before.
I'm literally not going to jungle anymore because it's not fun being starved for gold all game long and being FORCED to spend what little money you have on gp10s to get a very minute benefit late in the game, and then spending the rest of your gold on wards and team aura items because they are the only efficient items you can buy while still trying desperately to remain useful in the game.
The goal of this whole push is conceptually troubling because they want to deemphasize ganking which is the fun aspect of jungling and replace it with dying to jungle creeps which is obviously the unfun aspect of the jungling. One would think they would want to make jungling more dynamic (maybe add more contested jungle space or something). Couple that with less mid game viability because you're below level and behind on items and it doesn't sound super exciting being a jungle in S3.
The only refuge of fun in jungling will be counter jungling if this occurs though that isn't boring for sure.