There seems to be a view that the 'new' Flybe, whatever it's to be called, will see a primary role as a feeder for Virgin's long haul routes. If that is so and with Manchester having a sizeable Virgin long haul presence there must be a good chance that CWL will see a MAN link.
EXT's MAN link has carried 130,000 passengers in both of the last two years, making it that airport's busiest route - well over twice as busy as the next one in the list. 130,000 would have been CWL's second buiest route in 2018.
If CWL did get a MAN route I'm not saying it would handle 130,000 pa because for a start EXT has probably been feeding Flybe's short-haul routes at MAN, some of which might not operate if the new owners reorganise the airline's raison d'etre. Nevertheless, a MAN route could still generate a substantial number of passengers which would go some way to compensating for the passenger number reduction that will come about if Flybe does axe some of its current CWL routes. It would also be another hub airport of sorts from CWL.
I wonder if they want to feed Virgin flights from MAN they might move to term 2 there. It's a fair treck from terminal 3 to 2 otherwise.