Mono Green Karn Replacement

With the impending ban announcement that is going to happen that will likely be aimed at Karn, what will it be replaced with. I have been playing the deck for a while and while I loved everything else about the deck, I have hated the Karn wishboard angle. I just want to cast big green monsters. What will it be replaced with? Previously people were playing [[Vivien, Arkbow Ranger]], is it possible we go back to that to find creature based silver bullets or do we pivot completely and just go all in on big stuff?