I feel like Riot needs to focus on better champion design...
The new champions Riot releases never seem to be that terrible, they just lack any reason to play them. http://www.lolking.net/charts?region=all&type=champion-unpopularity&range=weekly&map=sr&queue=1x1&league=ranked
Riots newest champions are barely played anymore, some of them falling under champions that are not even considered viable.