I'm very glad to see someone finally suggesting this; I've been a bit torn as to ask, or to not bother, seeing as it isn't exactly simple in doing.
Others have been known to ask, I'm sure, and have been given the negative reply. I would just like to say that it would be a great addition to the server: A wedding npc in towns that seem to need them would make the experience that much more special for those that take weddings seriously.
And I am one of them.
So, I agree with this suggestion. I really hope they take it to heart, and that at some point in the game they would think about adding them. I would probably end up divorcing then remarrying if it were the case, just to have a proper wedding at the place I love. (Lutie)
And if they don't, it's alright. It's just an idea, right? <3
-Kam, the rambling one. (I'll be sure to catch your wedding too!)