Going through what I think would have happened if DX ended up playing and winning that comp.
He probably gets misted into pulling Big D off, with Xavier going up in his place. We'll say X still wins veto, doesn't really matter who gets put up in his place, Claire goes out at 10.
Tiffany still wins that next HoH, and no one shoots for the secret HoH. She throws up SB and Kyland, Hannah still wins that veto and pulls X off the block, SB still goes out.
Now Kyland wins the F8 HoH and he nominates Alyssa and X probably, with a plan to backdoor DX. Alyssa still wins this one, pulls herself off, and DX gets put up in her place and sent out at 8th.
Hannah still wins the next HoH, and everything plays out as it did.