Right now I'm looking at this with a kinda 5 year pan in mind, think this could realistically happen....
Know:
2026: Shoreline Pier at the Boardwalk
2027: Phantom Spire
My 5 year plan:
2028: New transport ride: this is desperately needed, think everyone here can agree on that. I would prefer to have a new cable car ride but if not the idea for a train like
@northdetective just proposed is really interesting. However I likely wouldn't bring the train all the way to base camp for the 2029 addition....
2029: Relocate the safari station to Golden Kingdom. I think there is a way this area can be rethemed to have a more African adventure theme than Asian. The safari doesn't make much sense in Frontier Adventures so let's just move it over here so you can have a more complete safari experience while in the park.
2030: Vekoma Tilt Coaster: These things are huge GP attention grabbers in the same way the Dive Coaster is. Dorney has a Iron Menace so Great Adventure gets a tilt. I'm finally demolishing the Lone Star Theater and the Safari station for a massive custom layout tilt coaster. Probably not quite the size of Iron Rattler but larger than Siren's Curse. I'm also giving Medusa ANOTHER major face lift, new sign, new paint job, removing the noticeable remnants of Bizarro so it actually fits in with Frontier Adventures.
2031: I'm calling this the year of the repaint because I'm giving Mine Train the repaint it needs, and Nitro finally gets the facelift it deserves for it's 30th anniversary. I actually really like the military theme talked about earlier that would allow it to fit in better with the Pine Barrens and keep the Nitro name. A Military green track with a light grey support combo would be really cool imo.
2032: Drop Tower: I waited for this because I'm hoping Intamin and Six Flags can improve the relationship because I really want a Falcons Fury style drop tower. If not it'll probably be S&S unfortunately but either way I'm also putting this in Frontier Adventures with a mine shaft theme to fit in with the area and round out this side of the park.