Rumours are rumours and you either take notice of them or take them with a pinch of salt. WW have been at CWL for a few years now so I'm sure which routes work and which don't. Seeing that they're axing GDN, it's possible that whoever at Aviance mentioned it may have misunderstood that it was this route WW were axing and not the whole jolly lot.
I really think that if they weren't interested in CWL and they were "flogging a dead horse" then they wouldn't have added the BCN flight, due to start later this month imo.
It will be interesting to see what they do to replace the GDN flights. Extra flights to the Costas/FAO/PMI?