Pre-ending published material confirms he did. Post-ending published material confirms he didn't. Retcon.
Except Pre-ending published material also confirms he didn't, unless we're ignoring the multiple developments and opportunities where it could have been executed as he did, 467 and Minato's depature specifically. Post-Ending material doesn't go and change anything. All it does is explain what has been understood by several for some time.
States. Not suggests. Outright states. Multiple times. You've been shown. Multiple times.
Sure, states. The Manga deals with what the extent of this love is, a crush. (On a side note, This is why I am interested in what exact wording of love is being used in the Japanese databook, as this makes all the difference in meaning.)
Nope. To say his feelings are platonic would mean he no longer has platonic feelings for her after the ending: "She decided to protect his dream.To pay back Naruto Who always protected her and loved her until now." Pre-retcon Naruto loved Sakura. Anyone who denies this denies facts.
No? To say it is platonic would explain what his feelings had always been. Pre-Not-Retcon and Post-Not-Retcon Naruto did love Sakura, as a friend. No one is denying this, so no facts are being denied.
Non sequitur. That Naruto is wanting to bring Sasuke back for himself as opposed to his feelings for Sakura does not invalidate his feelings for Sakura, as we can plainly see in Sai's flashback. Whether you like it or not, that scene happened. And Naruto's bond with Sasuke is established clearly at the first valley of the end fight. So there was never any notion that he was going to abandon Sasuke even if Sakura told him to forget about his promise. The promise and the his bond with Sasuke are independent of each other and have always been.
The promise in itself does not, but 467 does. Naruto's words very strongly recognizes that not only Sakura is lying to him, but that she stills loves Sasuke. Sakura assumed that Naruto's feelings were a driver, as did Sai, but they were not. Misunderstanding and under-estimating Naruto is thematic within the story. With this not being a driver of Naruto's feelings, what really is the evidence that these feelings are romantic love, is the error not one's assumption that the crush remains status quo?
Not that it matters. The 4th databook came out long after chapter 470 and it states in clear terms that Naruto loved Sakura until a certain point. So everything you've told us about "crushes" and "platonic" feelings is malarkey.
Platonic feelings explains the bond in general. Crush? Explains what you are reading in databooks, really.
Nope, we're flat out told why he can't in Sai's flashback from Naruto himself. He tells us in plain in simple terms when asked about why he won't confess "How can I when I can't even keep my promises?" This is in the manga. I thought you liked the manga. Yet here you are pretending certain parts didn't happen. Didn't you just criticize somebody for refusing to acknowledge everything post chapter 697 as canon? Truly baffling. Nevertheless, actual scenes in the manga trump your headcanon any day of the week.
I'm actually not ignoring this scene. The fault here is your assumption that Naruto is saying that he isn't confessing to Sakura because of the promise, when just chapters later, we learn the promise has nothing to do with anything, and is not driven by feelings with Sakura.
That sounds like your idea of a 'conspiracy theory' to me. "They didn't want to reveal their hand too soon?" How do you know any of this? Not that it matters of course. Early sets of material say one thing. A later set of material says the opposite without rhyme or explanation (which is what we would get if your conspiracy theory had any merit). Say it with me: Retcon.
At best, you are misinterpreting what the databooks are saying. At worst, you could argue the databooks themselves are off, which they aren't, so it's probably an at best situation. Still no Retcon.
Don't we have interviews about purposeful insertions of a Red Herring in the 600s to cloud things up? I know because we are told and shown this.
As we've seen above, your belief is not based on any facts, contradicts facts and relies on deliberately disregarding unambiguous scenes in the manga. There is zero, zero, zero confirmation of a "crush" on Naruto's part. Nowhere is that word used. Not the manga, not the databooks, not the interviews. Nada. Instead, we have the word love. Not once, but multiple times. And rather than accept this, you try and make up new words (i.e. platonic love). You're less interested in the truth than you are an agenda. 
In fairness, your belief relies completely on the databook's meaning being insistent on a love greater than a crush, and this being taken away by later material. But later material does not do this.
See, you can call it love, and not be wrong, Even the Last uses the word love. All the merit to you if you believe love is the correct diction.
But the Last quantifies a difference between this love you are bringing up and the later love Naruto has, the latter being absolutely romantic love, which he experiences for the first time, thus First Love. That is why I call this former love a crush, or platonic love in it's present form; it is the -fitting- term of what we are shown. This one has shallow origins, and fades away from that, instead, becoming a very close friendship. This isn't a Retcon, because this is what happens within the manga. By definition it cannot be doing this, particularly when the interpretation offered is one had by many for a long time, who have called such out.
No agenda, really, besides defending against the term Retcon.