It's not quite as simple as that. No park can simply add any ride they want just because it looks cool. There are many problems with the idea of a Tidal Wave style attraction opening at the resort, especially for 2017.
For one, the resort is currently investing quite a lot as it is. A new hotel, new small attractions and ongoing TLC all add up and with SW8 just around the corner, I doubt we'll be hearing of any notable new additions for some time.
Furthermore, there is simply not the demand for such a soaker of a ride. The UK doesn't have good enough weather to make a large water ride something the general public want to ride on an average day. Even Tidal Wave, which operates in the slightly warmer south, can rarely be seen at over a five to ten minute queue (except on very hot days). Indeed, this was one of the reasons behind The Flume's removal. Space is also an issue - where would this type of ride fit in terms of space and theme?
Then there's the fact that these rides require height to generate such a thrilling ride and large splash. Tidal Wave stands at 85ft, which exceeds Alton Towers' maximum height, so a ride like this would not be nearly as big as Tidal Wave and would often be compared unfavourably to it.
As such, I do not think a Tidal Wave style ride or similar could realistically be on the cards for Towers. Whilst it would be nice to see a replacement for The Flume someday, I feel that any new water ride should come in the form of a water coaster such as Poseidon (on which the level of wetness can be altered depending on the current climate) rather than something so wet.
Burniel | Great at theme park knowledge, not so great at designing signatures.