Amumu Rework (whever that happens)
I know that the whole "sad mummy" thing is a pretty important part of Amumu's lore, ... but ... does it really need to be?
I fully expect to be downvoted for this, but I would actually like to see his story change a bit more to take him out of the "nobody likes me" gimmick.
I don't even see it happening, but .. idk, I think Riot can be more creative with this theme.