#1 Kane could get involved in the Universal Title match at Hell in a Cell
Kane returned to RAW after a long time this week. While he appeared as the Mayor of Knox Country, he also showed up as a Demon King at the end of the show. As a matter of fact, Kane also won the 24/7 Title on RAW, before losing it back to R-Truth.
When Seth Rollins was outnumbered by The OC, Dolph Ziggler, and Robert Roode, Kane came out to rescue the Universal Champion. After saving Rollins from the beatdown, Kane was attacked by The Fiend, which was one of the best moments of RAW this week.
Although The Fiend assaulted several legends in the past, the scenario could be different this time. Kane helped Rollins to defend the WWE Title successfully a couple of times when the latter had a lengthy title reign in 2015. Hence, the possibility of Kane's involvement can not be ruled out at Hell in a Cell.
Rollins has significant momentum after slaying the Beast and the Monster consecutively. The Fiend, on the other hand, is the hottest thing in WWE right now, and he has no chance to lose. If Kane interferes the Universal Championship match at Hell in a Cell, it could lead to disqualification, and Rollins could fight The Fiend again at Survivor Series, which is one of the biggest pay-per-views of WWE.