Hoping Hiccup's Wing Gliders queue gets improved. It's the weakest queue out of all the major attractions and is designed quite odd. The queue railings (really ropes) are set up high so kids can easily walk under it, bizarre considering children are the target demo for it. The backside of Mead Hall (and accompanying utilities) are very exposed. Hoping they can at least paint them dark green/blue, but it looks very industrial.
The ceiling fans above are also way too high to be useful, so hoping they can add fans closer to the ground with mist as well as this queue is entirely outdoors.
Didn't get to ride, but the station work is very nice.
HTTYD has very nice touches and design throughout.