#3 G.O.D
Due to contractual obligations, this one may be a bit far-fetched but anything in wrestling is possible in 2019 though, and there's two men that would make more sense in this spot here.
Before AEW became a reality, The Elite were members of Bullet Club, and constantly butted heads with the NJPW Bullet Club, and it was the leader of the group, Tama Tonga, that was at the head of those arguments.
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Tonga has stayed true to New Japan despite seemingly everyone from Bullet Club walking away. If he is coming to AEW to make their mark on The Bucks and Kenny would be a very interesting story to tell.
Chris Jericho is the top heel in All Elite Wrestling, and there are few in the business today that garner true heat like Tonga in New Japan, so this one would be incredible to see, depending on their availability to appear in All Elite Wrestling.