Heehee! He was just talking one day, can't remember what about really but when he mentioned something like "I don't think you'd wear a red dress, your far too traditional about weddings" I made a kind of face and then he panicked. And so now he's a bit unsure... 
Other than, I don't know what he expects me to be wearing. Personally, I think everyone will expect me to be wearing a princessy type dressed with quite a few sparkles when in fact, there ain't a single sparkle on my dress!!!
I might see if I can get him to write his prediction in a sealed envelope for me to open the morning of the wedding since by then it's too late to do anything different! 