A draft has been completed for the third film in Frost and Simon Pegg's 'Cornetto Trilogy', which has the working title of The World's End.
"There is a draft out there, which I've read, and it's great, and I think our plan is to crack on and shoot next year," Frost told Coming Soon.
"Touch wood. They move and they change but we definitely want to get on with it."
Edgar Wright will return to direct the third film.
Frost and Pegg leant their voices to the role of the Thompson Twins in The Adventures of Tintin, which was written by Wright, Joe Cornish (Attack the Block) and Steven Moffat.
Watch Edgar Wright discuss The World's End with Digital Spy below: