Helvetic
I'm pleased that Helvetic has given this route more time.
The Switzerland-originating traffic to CWL during last summer was reported as being quite good whereas the Wales-emanating passenger numbers were poor meaning the route as a whole struggled, with average monthly loads on the F100 as follows from May through to September: 18, 21, 33, 22 and 17 respectively (CAA stats).
Helvetic added the BRS stop in both directions in early December with about three weeks notice and with little advertising other than on the BRS and Helvetic websites. I'm told that BRS is now advertising the route more widely including on city buses.
Mid-winter is never the best time to begin such a route, or insert additonal stops, so it must be presumed that Helvetic saw something to encourage the idea of continuing the double-drop operation through the summer despite the additional costs that such routings usually bring.
It's like the old days when airlines often operated routes via BRS and CWL.