#3 Dominik Dijakovic costs Keith Lee the match at WWE NXT TakeOver: XXX
At WWE NXT TakeOver: XXX, Keith Lee will battle Karrion Koss, the man who took out Dominik Dijakovic on NXT. Dijakovic and Lee are friends, so perhaps the former could be involved in the match at WWE NXT TakeOver: XXX.
Since Karrion Kross will have Scarlett in his corner, Dominik Dijakovic could even things out by standing in Keith Lee's corner. Something could then go wrong, forcing Dijakovic to interfere in the match.
Dominik Dijakovic could then attack Kross, giving the latter the win by disqualification. Keith Lee will still retain the title, but the victory will go to Karrion Kross.
Another way Dijakovic could be involved in the match is by attacking Keith Lee while the referee is distracted, thus turning heel and allowing Kross to pin Lee to win the title at WWE NXT TakeOver: XXX.
Why would Dijakovic turn on Keith Lee? Because it's pro wrestling. This is how rivalries are created; we have seen it a hundred times before. Lee and Dijakovic put on classic bouts when they fight each other, but this time, they could have a proper, longer and meaningful feud, like the one between Tomasso Ciampa and Johnny Gargano.
This is the unlikeliest option, but it could still happen.