The press release from Berne Airport is
here (in German). Limited information: Intersky will fly to Berne on Saturdays from Newquay, Manston, Prestwick and Bournemouth, using ATR72-600. Flights will go on sale from the middle of next month.
I doubt that an ATR can squeeze in more than two round trips from Berne to the UK in a day (Prestwick-Berne must be more than 3 hours!), so if the schedule is correct, it would appear that Intersky is going to be positioning both of their ATR72-600s to Berne for winter weekend flying.