@GarageYears
I mentioned the speculations I was aware of. My opinion is -sshhhh, nobody should know it right now - that the aircraft finally crashed. It may be that one (or several) of the crew had intentions to land the aircraft somewhere (I'm not ruling out this rumour) but it did not come true (again: my opinion). Might be the pilot lost control in low level flight (unlikely) or the aircraft ran out of fuel. Still speculations and not founded on any evidence.