4. Things change for Viall after his finale.
There's plenty of talk that Viall might end up alone at the end of Monday's finale. Viall said he wouldn't propose if it didn't feel right, but a new promo shows him saying, "I am going to ask her to marry me, and my only fear now is, what if she says no?" It's possible Viall's proposal could get rejected a third time. Perhaps the "historic" moment is that tonight, after his finale, the woman who rejects him (or another past lover!) shows up on AFR and asks for a second chance.