Cool game mode idea " The vault"

What if riot in a special game mode let you play old styles of champions? Miss the days when akali multi zipped around and murdered everyone with a point click mark, wanting to remis on how funny old taric use to look. They could even bill it as ekkos ult was like overpowered and literally brought the rift back about 2 years into the past for a short time. Don't know, all I know is that alot of mains who didn't like certain reworks might come back to dust off a champion they haven't seen in so many years. Also new people to the rift could take a look at how much a champion has changed over the years.