With all the craziness going on with Barry and Oliver, it wouldn’t be crazy to assume one of the two is getting married in the near future.
While it could be that the events on Lian Yu convinced Oliver and Felicity to tie the knot, the smart money seems to be on Iris and Barry, considering the state of their relationship when he entered the speed force.
Who could be in love?
Obviously, it could be a hundred other things that aren’t a superhero wedding, but the concept does sound like something neat for the Arrow-verse to tackle as well as something where the “emotional stakes,” as Marc Guggenheim put it, are greater.