I'd be interested to see how weddings go within certain cultures, such as Seekers of the Sun. Not that I don't think they're applicable to Miqo'te, just how it will be tackled lore-wise. Of course, we have Eorzean culture (a melting point of cultures) as a very valid excuse - adventurers might be turning away from the ways of old to a degree, and starting their own rules with relationships and love.

This could be confronting to traditionalists or the desires of tribes and clans, however.