There;s a couple of untapped city breaks I think they could make a go of.
Sicily and Sardinia could be expanded, as could the Greek Islands. They may even venture to La Palma? Or maybe the Azores might work from MAN?
They haven't touched Bulgaria yet, Iceland must be on it's way, and I hope they have Morocco in the back of their heads
I'd love to see Cape Verde to be honest... Fingers crossed...
And of course there are a lot of frequency upgauges that could be done, and they can't go wrong with Spanish cities, there's a multitude they could take a pop at... Maybe even Gibraltar!