According to Dave Meltzer, Hell in a Cell is looking at two different Cell matches, one between males and one between females.
As had been speculated upon for the past couple weeks, The Fiend will be facing Seth Rollins for the Universal title, and it looks to be scheduled for the Cell. After Rollins' title retention over Braun Strowman last night, The Fiend attacked Rollins on the entrance stage, finishing the assault with his Mandible Claw.
The other Cell match will see the continuation of Raw Women's Champion Becky Lynch's issue with Sasha Banks, after their non-finish on Sunday. Banks won the match via disqualification after Lynch accidentally struck the referee with a steel chair that Banks introduced into the match. Afterward, Lynch battered Banks throughout the arena, using both the chair, and her Dis-Arm-Her submission.