As soon as they can, they will create some huge advertising campaign. Weather that is big 5 challenge, something else, or push more for scarefest
The budget for scarefest could stay exactly the same. All they would really need to do is advertise more. Tv adverts this year.
I think the general feeling with non-enthusiast visitors is that they will visit, but only when the smiler opens because "Alton towers rides are dangerous and always break down"(I put this down to tabloids making exadurated articles on every ride closure)
Visitor numbers will go back up.
There will be more emphasis on fireworks/scarefest.
The smiler queue might never be the same again.
Alton towers won't really be affected.
People will forget.