I've made jokes about it being Adam Rose, especially after the comments Triple H made about "surprises nobody's talking about." As hype as it would be to see Adam Rose, perhaps under a new character, it would be such a letdown after the Bray Wyatt hype. The two can't compare.
And let's not forget, this is your typical SmackDown. Bray Wyatt's going to return in grand fashion. Premium Live Event, probably interrupting Roman Reigns after next year's Mania. That's where the big pop can happen. We (unfortunately) won't see Bray Wyatt return tonight, or likely anytime soon.