#3 Double-disqualification
One of the potential outcomes for this champion versus champion matchup is that neither woman comes out on top. The reason for this is that, while the winner would have bragging rights, both of these women are heels, and heels cheat.
The match also doesn't provide enough of a reason to dislike one competitor over the other, so it ultimately doesn't matter that much. It would very well be possible that Paige returns and attacks Natalya, while Asuka comes out and lays out Bliss.
To have a heel versus heel, champion versus champion match means that there are enough enemies on each woman's respective brand to raise the possibility of outside interference, and causing the match to be completely thrown out.
The reaction that could be generated would certainly be something for all to see. It definitely would entice the fans in attendance to see a brand versus brand battle involving the entirety of both rosters, while both women's champions run for their lives.