It is rumoured that the Saudia pilots (most probably only the Saudi ones!) are giving the airline 2 weeks to organise appropriate medical insurance. If none is in place by then, they will refuse to fly ... it is illegal to strike in Saudi Arabia, but this would not actually be a strike. Time will tell ... but so far there hasn't been any reassurance that medical insurance is being arranged!
In other areas of work in the private sector, expat Iqamas cannot be renewed without medical insurance, so all companies HAVE to insure their employees. But Saudia is not the private sector!