Pantheon in the new jungle
It's come to a lot of people's attention that Pantheon's capable of clearing the Dragon at level 2 without taking any damage. His passive, along with good use of his Q and W, allow for this because the new dragon attacks much more slowly than the old.
I think this sort of thing gives him and his team too big an advantage in the new jungle, and could lead to the jungle being a League of Pantheon.