If Universal were wise, they will probably not announce anything this weekend. If Disney announces something really big, HHN's will get lost in the mix.
I don't know what is up with them delaying the announcement. Just find another property that can be announced. Also, if we had original content as well, we wouldn't have this problem.
At least it's not as bad as 2010. A lot of you weren't even going yet and we didn't get ANYTHING until August 1st. At least two mazes got confirmed.