If we're being realistic, that whole end of the park needs a massive Rivertown level upgrade. Gold Coaster is now 30 years old. It's rough and unreliable, and it's approaching the end of its life. That station area could be used for another slide tower.
The Thuderbolt plot has been sitting empty for 20 years and is perfect for a WWW expansion - including a lazy river. You could even put a new coaster in that area and have it interact with the water park like GC currently does.
Effectively everything from the Wipeout plot through to Kevil Hill needs redevelopment.
Something like Barrels Smokehouse being moved to bridge the parks would be good - especially if they were to build a proper (themed) bar on the DW side so there's a place for adults to just chill and have a drink.