I myself envisage her in something classic, maybe off the shoulder or strapless, fitting around the bodice, and then flows beautifully to the ground. The train will be long and embroided. I do wonder if she will wear a tiara, and if so which one? Diana wore the Spencer tiara. Will Kate wear one that Diana did or one loaned to her by Elizabeth? Wait and see!
Below are some videos I found courtesy of You Tube from previous weddings. I do remember although young watching Diana and Charles, and Sarah and Andrew, and a little of Edward and Sophie (What was shown in NZ).
Below is a spoof video of the wedding - very funny!