I don’t think it should be done for real but that would be a good CGI trick. The people making the video could leave a seat up front empty and put a ghostly image of Diana in it just sitting there crying. The key thing would be for no one there to acknowledge her on anyone to ever mention it.
That’s so very creepy. I did attend a wedding (my brother’s) where the bride’s father had recently (the week before) died and one seat in the first row was left emtpy and draped in a black cloth.
I was going to suggest putting a wedding cock ring on him since he’s not going to wear a traditional one. Also they could have the BBC air live coverage of William & Kate consumating the marriage in the presence of government ministers. Or they could just go nude during the ceremony.
Kate could interupt ceremony to talk about her imaginary childhood friend. “Raggedy Man, I remember you, and you are LATE FOR MY WEDDING.” Cue sound of TARDIS arriving.
It depends on what papers you read. Some will report the whole thing as an outrage - taxpayers, outdated traditions, why should we care, &c.
Then you have the situation where, if Kate moonwalked down the aisle wearing a lycra boob tube and hot pants with BARELY REGAL emblazoned in Rhinestones across her arse, replica outfits would be on sale within the week, and there would be a new fad of Asbo-Fabulous weddings across the country.