May the 4th at DHS, big crowds?

[buggy2727]

So I didn't realize until a couple of days ago that May 4 is the anniversary of SW. We were planning on doing DHS that day and already had a ressie at Hollywood and Vine that morning. So I booked our Sci Fi bfast for another day and figured we'd park hop when done. Of course I changed my mind and figured I could change my H&V bfast to a very late lunch and do Sci Fi for bfast - eliminating the need to waste a morning at DHS just for bfast. So I called a few times today to try and get Sci Fi on 5/4 but it's booked solid. I just called again and yes, 5/4 is still booked at Sci Fi but the CM told me that she had openings on all the other days that week. This got me a little nervous - May 4th is booked solid, every other day openings... I know this is the first day of the dining and it's also a Sunday but does this mean we should rethink our plans for DHS this day and avoid the park??!! I know last year they had special May the 4th happenings at DHS but nothing has been announced yet. EasyWDW has DHS as the most recommended park that day but now I'm thinking it may be one to avoid!!