Remember when jungling became a thing? A couple of pros decided it was more efficient, did it, perfected it, it was OP, and then became meta? Double jungles are the final role meta, unless something gets radically changed. This Yi jg Taric mid business isn't the final form, but it's a start. One champ in every lane, and a double jungle, hyper-carry and tank, following each other and counter jungling from the start...that's the final form. It'll take a very particular sort of player/champ combo in bot lane to make it happen, as they'll have to be so passive that two champs can't get them, but I've done it. It's the most efficient way to use all of the XP/Gold available on the map.