#6 Cody & Dustin Rhodes
As you can see above if you haven't seen Double or Nothing, Cody and Dustin went to war in Las Vegas, but after the bout, they shared an emotional embrace after Dustin agreed to partner with Cody to challenge The Young Bucks. Many expected Double or Nothing to be the last bout in Dustin's career, but now that they've agreed to compete as a tag team down in Jacksonville, they could have one final run as a tag team together.
There's always the possibility that this is just a way to get Cody to be the biggest heel in the company but to fill out 8 tag teams in this tournament to crown the first Champions, they make complete sense. AEW shouldn't sign any new tag teams going forward, as the division is already incredibly stacked, so bringing these two together would be fantastic for nostalgia, but ultimately, they're unlikely to hold gold in AEW together.