There is no reason they cant build a woodie that is below tree height and also doesn't need to use the valley. Also while it would be more difficult to get planning using the valley and think its unlikly do SW8 no one can say their is zero % chance of that happening, Before the park submit a plan they work closley with the planning office to ensure what they submit has a good chance of being approved.
The biggest things missing from Altons coaster line up are a Wooden Coaster and a coaster with lots of airtime, a wooden coaster would solve both of these and if RMC would also give the park their USP, especially of went with worlds first launched wooden coaster (assuming they use the same track as outlaw run and not the hybrid steal tracks used on the six flags conversions)
The biggest things missing from Altons coaster line up are a Wooden Coaster and a coaster with lots of airtime, a wooden coaster would solve both of these and if RMC would also give the park their USP, especially of went with worlds first launched wooden coaster (assuming they use the same track as outlaw run and not the hybrid steal tracks used on the six flags conversions)