This can be viable for other game modes (that don't use Summoner's Rift)
It would be unwise to change the current jungle. It will hurt the new gamers, and pratically destroy the system challenger junglers are used to.
Changing anything on the map (either it's minions/turrets/monster, etc.) will affect top gamers a lot. Just to give an example, challenger gamers know when will the camps spawn accurate to the seconds.
It sure would be cool for Riot to make more rotation modes with camps though, currently most rotation modes are literally either destroy npc or get as many kills as possible (with the exception of Noxus Blitz).
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About jungle being interesting...
Idk man, it is very hard to make it "interesting." It is somewhat similar to laning. You have to expect vertical jungling, counter ganking, and even scuttle fights these days take a lot of thoughts.
The best part about playing jungle is essentially being the team's support. You are the only one able to affect all lanes. It is the reason why jungle is considered the strongest position, and it is also the reason why jungle camps are getting nerfs after nerfs