One For All
I would like to propose the idea of having the One For All gamemode (meaning the gamemode in which you were able to play the same champion five times against enemies who play a different champion five times, not the madness we had on the Howling Abyss but on Summoners Rift) return every once in a while (maybe every three months). The reason I am rooting for the "One For All" and not for URF, while the entire community seems to want its return, is that it actively supports creativity and counterplay. If you happen to take Caitlyn against Taric you would not want a team where even the support goes ad but probably have someone play AP-Caitlyn or Tank-Caitlyn while Taric is just stacking armor. It supports thinking outside of the box and trying new things and can be turned into funny brawls (10 premades). With the new champions, reworks, nerfs and buffs it is interesting to try out the new possibilities. Although I would advise against having it as a permanent game mode. It is more savourable if smaller doses and the number of people playing it could decrease over time, to the extend where queues get longer than you would want. It would be nice if you could consider this poorly structured proposal ^^. I am the Element Flaemis.