The Shark encounter is definitely due for an upgrade. The ceiling is cracked, the signs look like they’re straight from the 90’s, and the fake plants and rockwork all need to be dusted. There’s also a ton of empty space on the lower level that could be filled with additional displays and theming.
I’m really hoping the penguin exhibit will be replaced with a brand new one that is integrated with Emperor, along with a theming upgrade and new indoor queue, station, and gift shop for the ride. If done properly with icy theming in the plaza and pathway from JTA it would completely transform both experiences and create an excellent Antarctica mini-land.