I'm not sure if Air Wales travel shop will remain open they sell package holidays using the like of Thomson etc. If they do then maybe they will have some charters but it will not be Air Wales aircraft I would imagine they would use Air Atlantique (if that's how you spell it) or something similiar and hire them to operate the flight but it's unlikely.
Air Wales has a airline will be no more, some potential good news for the flight deck crews is that Aer Arran are coming over to the Holiday Express next week I think to talk to Air Wales Flight crews about potential jobs because they need ATR crews, so could be some light at the end of the tunnel in term of good folk getting jobs.