Warwickshire are mentioned in this article about where Bashir may go - " While no approach has yet been made, Surrey - where Bashir played his age-group cricket - could be a potential suitor, as could Warwickshire and Worcestershire."
Personally, I think it's unlikely; but who knows?
https://www.espncricinfo.com/story/shoaib-bashir-set-to-leave-somerset-when-contract-expires-1488763