They could build out into coaster corner for a dark ride to expand cloud cuckoo land quite easily. But given Thorpe are getting a new dark ride for 2016 i don't see Towers getting one for a while, just to keep investments varied. Overall though CCL is fine, it wasn't that long since the re theme from Cred Street. A family thrill level wooden coaster would be perfect, they managed to get plans for it 12 years ago and got somewhere with planning permission before pulling it and I think they still could if they really wanted to. Then build a dark ride for 2019, while refreshing all the other areas In between and adding to CBeebies on low investment years.