and, to counter your points made in that last scan-heavy thread, jean possessed telekinesis at an incredible level during the lengthy time in which the phoenix was clearly stated as its own entity. it's been in her genetics since day one, even in the original issues where her telepathy was being held behind mental blocks. if beast found a way to graft jean's genetic ability for telekinesis into him, much in the way sinister can graft other genetic structures into him, there's still no definitive proof that he's harboring any phoenix-based powers. his mind is incredible advanced, more so than jean's, and it's completely possible that he's either being boastful or found new ways to employ the telekinesis. nothing there definitively proves a jean-phoenix retcon.
jean adopted the personality and memories of the phoenix-jean (dark phoenix) after the phoenix returned to the cosmos, or went through time to rachel (whatever it decided to do.) she believes that that is a part of her past, when all continuity states that it is not, and even explains that she only received that part of her memories after the whole dark phoenix incident. that doesn't prove anything, nor retcon the fact that while the phoenix was parading around on the moon, jean was in a healing cocoon back on earth, completely inactive. that still proves nothing toward a retcon.
jean's comment about the cocoon and being born again all the time doesn't make her the phoenix either. it doesn't change the fact that they were two separate entities the first time it happened, and it could be taken as jean simply stating that she and the phoenix force are tied together, not one and the same. jean's made reference to dying and being reborn countless times prior to this. that doesn't serve as a retcon either, nor does it make the healing cocoon part of her life. it's still, using all plausible continuity, something the phoenix force erects around jean to heal her dying body.
the conversation with the golden woman says nothing of being jean grey, but rather continues the already-proven idea that the phoenix adopted jean as its host in order to experience sensations such as emotion and desire. it doesnt say "i feel this because i am you" in any sense, and it doesnt at all undo the idea that the phoenix possesses a human host in order to experience heightened levels of awareness (dating back to feron, several hundred years prior to the original jean/phoenix incident.)
and endsong can be taken many ways, which have already been explained. there's still nothing definitive that says the retcon has been undone.