Even though they aren't very good, my guess would be Paulding.The GMC still needs to expand. You can schedule around 9 in other sports, but the odd number in football isn't feasible.
The question is, do they go with 1 or 3 of the Edon/Hilltop/Montpelier trio, knowing they'd be football only and happy in the BBC. Or do they go with Paulding.
There's also the question of what happens in a few years if Antwerp realizes they can't support 11 man.