Will we ever be able to play any of the old champions (pre-rework) again?

I'm certain that many players do not agree with the reworks and maybe at some point in the future; will be allowed to play them again for nostalgia's sake. Regardless if they were supposedly 'anti-fun' or not, they were still immensely fun for whomever knew how to play them.

Hell, even riot could make an event out of it with some lame story about some dude travelling back in time (ie zilean). Would be disabled for ranked of course.