score:3
For now, plan as if the travel goes on as per the flights you were booked on but I would not book thing where you do not get your money back if you do have to cancel.
Most likely you will be offered an alternative that gets you from Lisbon to Bergen and from Bergen to Lisbon around the same time, but if no other flights are available it might be a few days earlier or later.
June is still plenty far away that alternatives will be available, maybe with a stop in an other country, like Germany rather than Spain.