Please make it so that you get bonus crafting rewards for playing less popular roles/fill
I remember a Rioter a while ago (think it was Lyte on ask.fm, not sure) saying you could get rewarded for playing less popular roles once New Champ Select would come out. Now that we have Hextech Crafting, I feel like they can easily fix issues like the huge lack of support players just by increasing key drop rate for those players, or maybe rewarding them with additional chests.
Then people like me can finally choose support/fill as their secondary without getting support every single game, and it would also decrease queue times for mid/adc players because more people would switch to support.