IMO they are still negotiating. China and US are in the know; I believe the Chinese satellite images were "leaked" intentionally as a diversionary tactic. I believe the US is slowly leading us toward the end and they are lining up Navy Seals to finish this off, possibly tonight since USS Kidd should now be in the vicinity.
This scenario seems too good to be true, but it does not really contradict anything we know does it? The Chinese satellite images were suggestive but just vague enough to not really be sure about anything - clever if that was the intent! I don't mind being jerked around with misinformation if it's to save lives.
Of all the scenarios I can think of, this sounds like the best possible outcome so I hope it's right. But we know so little and what little we know may not be true. I was kind of leaning toward the theory that a mechanical problem or small bomb or outside debris (collision with another plane perhaps, a military one that they don't want us to know about - was this the one seen burning while the other one flew on for awhile? Could a collision cause it to turn off course?) did something to the cabin pressure and the crew and passengers were incapacitated or deceased while the plane flew on autopilot for awhile before crashing. But if it flew in a zig-zag pattern later that doesn't seem likely.
If it did collide with another plane, maybe it's not a military plane but a smuggler or someone flying extra-legally. And the government(s) doesn't want to admit that this apparently well-used commercial flight corridor is not under very good control. Would someone like that have a plane that could fly that high though?
Another scenario would be someone is either faking the data in some way, for example making it seem like it's somewhere it isn't, or took remote control of the plane in some way. Don't know if this is even possible. This sounds like something from a James Bond movie, but if you wanted the plane but not the people is it possible for a gas bomb to be set off on the plane with either a killing or incapacitating gas and fly the plane remotely from some other location while everyone is unconscious or deceased? Would have to work instantly though, or someone would send out a distress call.
All of these ideas are wild. The simpler theories usually work the best. But I can't think of any simple scenarios that match what we think we know. But of course everything we think we know could be totally wrong. How frustrating for the families. I feel so bad for them.
It's difficult for branches of our own government to communicate effectively with each other so it's not surprising that with multiple nations involved that things are very weird and complicated. There is plenty of meat here for speculation about conspiracies, but human communication is difficult even when there is no intent to hide anything. And it's understandable that the governments involved don't want to put everything on the table. It could be for nefarious reasons but doesn't have to be. I just hope there is an answer some day and the passengers are saved if that is still possible. And whatever happens that the families pain can be lessened in some way. I hope they know a lot of people are thinking about them.