Two weeks ago, the team looked to be set in stone as Dominic Dijakovic stepped up to join Ciampa, Keith Lee and Matt Riddle to face The Undisputed Era.
Names like Velveteen Dream and Kushida have been thrown into the mix. However, there is a chance that NXT could go with the same approach that they did for the Women's WarGames match: looking at the NXT UK roster.
The US and UK NXT brands have intertwined numerous times over the last three years with mixed fortunes, and there isn't a lack of talent developing their craft in the UK Performance Centre.
So here are 5 NXT UK stars who could end up in WarGames.
Let's kick off with arguably the biggest name on the NXT UK roster in the WWE United Kingdom Champion.
'The Ring General' Walter isn't shy to the Full Sail crowd. Alongside his Imperium cohorts, he was a regular feature on NXT during the early weeks of the brand's run on the USA Network.
It's clear that WWE see big things in the Austrian given how well he has been protected in 2019.
Looking at how the NXT crowd have reacted to his appearances recently, he would certainly receive an electric reaction if he was chosen. The only thing that would make this unlikely is his current allegiances.
Walter is currently portraying a heel figure on NXT UK. Team Ciampa are the good guys in this encounter. It just wouldn't make sense in that way for Walter to try and take down the Undisputed Era.
It would be more logical for him to be a member of Team NXT the next night at Survivor Series.