Reason for this is that BE anticipated that the route would end this Friday given it's originally temporary nature, however today's news has confirmed it is to be extended on a permanent basis for as long as demand is there.
This means the service will resume in November. I am also assuming the aircraft will fly an additional route during the day and possibly evening (Crew permitting).
For the temporary operation they have used BHD based crew and swapped the aircraft with the BHD flights on what seems a near daily basis to facilitate crew transfer. I imagine this will continue in some form given that CWL is not a BE Dash 8 Crew Base.