HOTD finale leaks, Daenerys and TPtwP, retcon?
Okay. So this is something that is just irritating as hell right now. Currently some Jon fans (and I am one myself too--to some extent-- so this is not coming from a Jon hater) are really unhappy that the leaks show that Daemon already saw centuries ago that Dany will be the The Prince that was Promised. They are alleging that this is somehow a retcon of the original. To them, here is my question: Original what? Show or Book?
In the show, there is no clear Prince that was Promised. The last time the Prophecy is mentioned is in 7x02 when it is clarified that it is nuetral with respect to gender. It never shows up in season 8. Nor do the events of season 8 give us any further clue on the prophecy. Every plan made by Jon and Dany failed to stop the Night King in 8x03. By the end of the episode both Jon and Dany are in hopeless situations. Only the surprise attack by Arya (of all people) defeated the Night King after he had, by all rights, won. Arya, of course, if we follow the show's narrative was prepared by the Lord of Light (and knew nothing about any of this) and had nothing to do with Jon and Dany. Not even the show claimed that Arya was the Prince that was promised.
In the books, there is no case for claiming that this is a retcon in any way. In fact, by the end of Book 5 (the last one so far released), Dany is the most obvious candidate for the position. We have the red priests proclaiming it (btw they are also proclaiming it in the show, recall Kinvara). Maester Aemon, who seems to have spent his whole life looking for the fulfilment of the prophecy and is an expert on it also identifies Dany. The signs are all there ('dragons from stone' etc.). Born amidst 'salt and smoke' (Dragonstone), 'bleeding star' (red comet) and so on.
So what gives?
I should also point something out that is essentially stated again and again as if it were established canon:
That Jon IS THE SONG OF ICE AND FIRE, becasue he is THE SON OF ICE (Stark) AND FIRE (Targaryen). It seems that the ones who make this argument think that repeating it often enough and loudly, along with derisive dismissals of those who do not agree with them is sufficient to make it a canonical fact. However, none of this changes the fact that THIS IS AN UNCONFIRMED FAN THEORY.
I will be the last to deny that there is evidence poiting towards Jon as well. However, as of ADwD, Jon and Dany are the only plausible characters who can be TPtwP. To make either fit, some parts of the prophecy need to be interpreted metaphorically (with there being canonical support for such metaphorical interpretations, no less) while the others fit literally (for example, 'sword' has to be given a metaphorical interpretation for Dany, while she fulfils the part about awakening dragons from stone literally). If one of them is the one, it can hardly be called retcon.
If we take creator statements to be truthful, specifically that "Aegon called his dream the Song of Ice and Fire" came directly from Martin, then would that fan theory not already be essentially debunked? If it's just the in-universe name for Aegon's visions, then we're not looking for a specific person or event, and identifying Jon (or anyone else) as "the ice and fire" makes no actual sense.