I feel like I'd be okay not seeing an adc EVERY game.
Similar to how assassins, mages, or mage-assassins are played mid, and how bruisers can be played top, but also tanks and some assassins, I feel like I'd be okay seeing someone who's not considered a "scaling marksman" be played bot lane.
And I'm not saying make adc's irrelevant, but I just want every single class in the game to be... replaceable? If that makes sense. When ziggs was being played bot lane, I actually enjoyed that.

so having them replace ADC paired with another mage supp or hard engage wouldn't be healthy at all.