I guess it doesn't make any sense for them to time it with a U.S. event of any sort, although the anniversary doesn't have geographical boundaries. If Parco is coming around the next update (6/23) maybe that is more logical.
I just don't think this line is complete until I have Luke and Leia Hoth, (and Hammerhead, and Amanaman, and squidface, and Bib, and a dignitary chase, and loads of inexpensive snowtroopers, and about 20 other things)