All they'd really need to do is to do some light retheming and paintwork around the area itself; maybe change up some of the food locations to match that of Hollywood's locations; the archway being redone; and then revamping Jurassic Park River Adventure to JW: River Adventure.
Honestly, if there was anything I'd put money on in happening now, especially with EU delayed to 2024..it's arguably Pets and Jurassic World. Depending on things, it could be rather cheap for them; and may not require much outside of River Adventure (but even that..can be done with.)