I'd love to see a coaster and general park improvements. I don't really enjoy visiting Boomerang Bay (not a fan of waterparks here) so I don't know what it needs, from the walking around I've done there it seems like a small slide complex, another restroom (?), and another food stand (Outback Shack has looked jammed whenever I've been there). I think some repainting and repaving in Action Zone would do wonders, and some new lighting and new paint on International Street (including a revamp of the main gate) would also look amazing.