The theme park currently closes over winter.
Staffordshire Moorlands District Council is working with Alton Towers on a 10-year plan that could generate hundreds of new jobs.
The proposal is part of a tourism strategy which aims to make the Staffordshire Moorlands into a stronger visitor destination over the next five years.
About 6,000 people work in the tourism industry and visitors spend about £335m annually in the area..
A report for the council says the strategy for Alton Towers opening throughout the year would need private-sector investment to be unlocked and the support of local communities.
It comes following the launch of the resort's new ride The Curse at Alton Manor.