Ser Davoos discovering Shireen's toy stag and the site where she was burned, as the dawn awakes behind him. Like a symbolism for a rebirth. A new dawn, a new day....LIGHT.
I can't seem to let that haunting vision go. There was a reason for it. Add to that Melissandre's disposition and conversation with Jon in this past episode about the will of the Lord of the Light, and Jon's parting line, "What kind of god would ask for that?" (i.e., bringing him back despite his wishes)....And, then I see the trailer for the next/last episode, where Ser Davoos angrily confronts Melissandre about "what you did, tell him!"
I just get the feeling that Shireen's death is tied to Jon's resurrection. Shireen was taken on this crazy journey, following her dad's camp and men, up North, for a purpose. Which Melissandre kept referring to, "King's Blood". And Jon will now find out that she was sacrificed so he could be brought to life again. Which is going to do his head and heart in. Given how Jon is. The guilt.....the self-doubt about his own purpose. This whole 'game'.
That would mean that Melissandre doubts her powers to read/interpret the signs from the Lord of Light. What she initially thought were signs to sacrifice Shireen, so the rightful king (Stannis) can prevail/succeed/win that battle, was actually the Lord asking for Shireen's sacrifice for THE RIGHTFUL KING, which turns out to be Jon, not Stannis.
Would be a great plot twist, as Shireen's death has remained one of the most painful memories of this series for me, it seemed a hollow death. To finally have it tied to a bigger purpose (although still not justified by any of our standards of morality).
Which would mean that Jon 'won' his first battle after his rebirth on the same grounds where Shireen died, in order to enable his rebirth. To reclaim back the North. Full circle in the purpose aligning.
Jon is going to then throw a fit, about how everyone can fuck off, he is no promised king, nor does he want to be, if this is the way to achieve it....or something dramatic to that effect. And will be reminded that he MUST, else Shireen's death will be all for naught, blah blah....
But, this plot angle definitely is an interesting turn of events if it turns out to be true.