#1. Joining MJF and Arn Anderson to form a new faction

While a feud against The Young Bucks seems inevitable, jumping right into it without much of a build could be a bit of a waste and an easy cash-grab. However, a more promising creative direction would be joining MJF and Arn Anderson to form a new faction in AEW.
Arn Anderson is currently Cody Rhodes' head coach, but they teased a heel turn for the legend in MJF's steel cage match against Wardlow. It seems inevitable that at some point, Anderson will turn on Rhodes and he could simply be biding his time until the arrival of The Revival.
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While they would likely take the name "Shatter Machine" as WWE has the trademark for "The Revival", we wouldn't be surprised to see them join MJF and Arn Anderson in an AEW version of The Four Horsemen.
We must remember that Dusty Rhodes and Arn Anderson were mortal enemies, which would make it great for the storyline if The Revival came in and joined.