Balance of the game
The balance of the game is in a really fast pace right now, Riot has completely lost it by rushing to release new content without looking at the current content instead. What they should do right now is to chill out and balance the stuff right now before it's too late and the game starts to die off. They should start by actually doing what they promised and release solo queue then balance off the juggernaunts and LISTEN for once about new changes for certain champions by their OTP mains (i.e Mordekaiser) If however these things are not done i fear for the game that it would begin to die off, sure it's getting more and more popular tho but that's just because everyone is hopping on the circlejerk but when the newbies finally begin to understand they will leave the game.
TL;DR: Slow the hell down with new releases Riot
I know I'm just a gold 2 "scrub" but just my 2 cents.