Yes he does have a chance, he's shown in a lot of fights he can box and he has the stamina to fight 12 rounds. Stevenson is capable of a knockout as well, no doubt about that. It will be a war whilst it lasts, but Bellew is a top rated 175 fighter.

I don't actually know if this fight will happen straight away, I know Bellew
Is mandatory but reading stuff on boxing scene shows Stevenson wants unify or try and fight ward and cloud was being mentioned as well.