Might it be possible for VLM to re-establish the Zurich route? They showed interest in operating from Jersey and Guernsey to Zurich last year, they were even granted a license but failed to take it up. With their new Jersey to London City route taking off on the 30th June and the possibility of further expansion in the islands, Zurich could presumably be a success with the Fokker 50.
Certainly a Zurich route is of extreme importance to the islands, not just for the finance industry but also for tourism and access to a European hub as it is very inconvenient and expensive for locals to have to transfer from Gatwick to Heathrow for flights.