What about playing older patches?(at least solo or vs bots)

Like the title say. What about having opportunity to play older patches ? I know playing older patches with multiplayer would be probably unhealthy for game but single player shouldn't be big problem I think. Or it could be like game modes, and we will be able to play older patches(single player not multiplayer) only at some weekends.

I just want to play old Yorick Mori one more time. I only want to play patch 6.17(or older I don't care which patch it is just want to have old Yorick Mori in that patch) for like 20minutes that's all.

EDIT: I just found this ask riot http://nexus.leagueoflegends.com/2017/05/ask-riot-classic-mode/?utm_source=LeagueClient&utm_medium=NewsTier2Pos2 so nevermind

Thanks for reading.