(Spoilers Everything) A dark theory about Jon

So ever since it was confirmed Shireen will be burned alive as a sacrifice I've had this idea floating around my head. Basically I think Jon is the one who will burn Shireen or will at least play a role in it perhaps similar to what happened with Stannis on the show. Most people seem to think Melisandre will burn her in order to resurrect Jon but given that Thoros was able to bring back Beric, inadvertently, by praying I think the same thing may happen with Mel.

So in short, Jon returns from the dead, converts to R'hllor, becomes Stannis II and he begins trusting her prophecies and advice. Winter hits the wall hard and Mel suggests using the power of Kings blood to calm the storm and...well we all know what happens next. Thoughts? I'm sure someone has suggested something like this before but I really cant be bothered checking.