Last week's "Arrow" saw the show take a few more steps towards Felicity and Oliver's wedding day -- a day that has now been teased with a new promo photo. "Arrow" executive producer Marc Guggenheim and series star Stephen Amell both tweeted the pic, which sees Felicity and Oliver standing at the altar.

But are things exactly what they seem? Emily Bett Rickards recently spoke about the fact that Felicity's engagement ring is noticeably missing in the flash-forward funeral scenes that have popped up this season. What could it all mean, and will answers pop up in tonight's episode (which guest stars new live-action hero Vixen)?

"Arrow" airs at 8 PM ET on the CW.