#4 Kane's presence will be felt
He might not be back for long, but as long as Kane's back he might as well destroy some things. The return of Kane caught a lot of people off guard, most notably Roman Reigns.
Kane very well might have a huge grudge to settle with The Big Dog and he'll rip through the rest of The Hounds Of Justice in order to get the job done.
It wouldn't be surprising to see a spot or two where Kane demonstrates his old destructive power. Seeing how this match is the highlight of the pay-per-view there is likely to be plenty of time for Kane to chokeslam a Shield member or three.