Guess we'll see you there, leaving tomorrow too. Will be in the parks on Sun and Mon.
When I was there in Jan over the Martin Luther King weekend, Sunday was the busiest of all 3 days. The cast members said it was due to Sunday being the only day the southern cal annual passes could get in and the special 2 day ticket offer they had going. I'm hoping this weekend will be lighter since most people would be waiting until after May 5th (crossing my fingers).
There was already 50th merchandise in the parks back then, and I've heard there's even more out now.