Disagree completely that there isn't the public demand. As I said they are extremely popular. One only needs to look at Tayto's success, and how often on social media members of the public complain about the loss of the Flume or Loggers Leap. A new flume would definitely be a hit. And in my opinion should be at the top of the agenda. Water coaster would also be great but I'd imagine more expensive to manufacture. I do also think Merlin won't build one though. Especially with the further cuts to the budget for new rides, and the fact it would be difficult to find an USP.