I really think that Harry Potter will be a HUGE draw for Universal and it was a major coup in the theme park wars. I don't know if WDW's numbers will fall off, but just watch the attendance at Universal skyrocket for the first couple of years. I'm going to guess that numbers jump about 40 percent for the first year.
It might actually work in REVERSE and some of the folks who come to Universal to go to Hogwarts might actually spend the extra day at WDW.
