Don't forget about Rivers of Light. I'm much more excited for that than I ever will be for Frozen.
RoL will change DAK forever, finally cementing it as a park open until reasonable hours consistently (and Avatar will finally give it a needed new land/rides). The park still needs expansion, but RoL will forever change DAK for the better whereas Frozen will change Epcot for the worse.
In work you! I am really excited about RoL! I also believe the projection show and night safari are to open next year in AK.
And I belive Soarin Over the Horizon