Everyone's talking about new rides, but what I really wish the park would do is get more trees in Rivertown and a total retheme to Action Zone. Both have gained awesome attractions over the years, but the former has lost the forest-y feel that made it so cool and the latter has lost a majority of the movie set theme. Action Zone especially doesn't match theming wise with the rest of the park.
Though I'd be lying if I said I didn't want a muti-launch or a B&M to replace Vortex. Actually, I would like to see something like Hangtime in that spot. It would be as aesthetically pleasing as Vortex and would go well with the rest of the lights of Coney Mall.