How to introduce variation to Jungle - COUNTERJUNGLING!
Yes, you heard me right.
At the moment Riot is claiming they need to add plants because Jungle has been solved and is very straightforward.
Well, let me tell you, this is mainly because counterjungling is not as effective as it should be. It's very hard and unrewarding to counterjungle early unless you are Nidalee/Shaco/Lee, and even then farming your jungle is better most of the time.
If you introduce more incentives to counterjungle the Jungler role becomes less like a Solo PvE experience and more Junglers will need to be more mindful of PvP.
What could be done to make counterjungling more effective? For example I would introduce a new buff to the jungle upgrade that would have the following effect:
Killing a Large monster in the Enemy Jungle with Smite transforms Smite into a dash that can be used within the next 5 seconds.
Of course additional incentives would also be needed but items that incentivise counterjungling are a must!