Niles
Giga Poster
They have two existing areas in the park that need redoing after 2027 but could easily run out of space with the next 5-10 years.
Either push back the entrance and carparks or buy the golf course.
Looked at some old site maps as i wondered how big the Paultons site is. Definitely they will have to deal with the area infront of Valgard and Lost kingdom, critter creek to follow. There is also the long stretch of grass by the lake which has nothing on.

(Nice out and back coaster please)
After that though what else can they do? I think a car park reshuffle will work as they do own land before the car park and they could turn what is overflow into permanent and then build on the old car park.
While seeing if they do own that field i found this land border map and they own quite a bit (red line)

I dont see them being able to turn any of the woodland to theme park and to be fair being surrounded by trees is one of the reasons i like Paultons.
(coster round the lake within the boundary would be cool though)
But yes in short turn overflow into permanent and then build on top of existing car park would be my pick when they run out of space, second gate on the golf corse would be fantastic though