I mean, I've pointed out the evidence, which to me seems pretty obvious and clear. This is the events, in order: 1) They were asked if the books would come out together. They answered that it was impossible under current printer line ups given the size of their print runs. Then 2) They dud an event where they promoted upcoming books, in which they showed some art from the PHB (which included a page from the fighter) and announced the long rumored Vecna book. 3) After which, they tweeted Vecna "Coming May 2024"; 4) Then they tweeted the fighter page with the text "Core Books coming May 2024". 5) They retracted those tweets.
What do you think is more likely: 1) They cut and pasted the text from the bottom of the Vecna Tweet for the following Core book tweet and took it down when they saw the mistake; OR 2) They found a way to print 4 books (a feat they declared impossible) and plan to put them out all at once, but don't want us to know that for some "surprise" reason.
I have been selling D&D books, partnered with WotC, for 30 years. My experience tells me that the odds that TWO books dropping at the same time (Say, Vecna and the PHB) is not zero, but near it, and the odds of all 4 books IS zero. I understood the Core Books tweet to be a mistake the moment that I saw it. Well before they pulled the tweet. I was utterly unsurprised when the tweets were pulled. I'm not 100% sure that the PHB won't ship in May, but I am 99% sure that it won't and 100% sure that the DMG and MM will not.
You can choose to believe me or not. But I am not speaking from a position of ignorance, nor am I just another poster on the subject. I speak from decades of experience combined with looking at the evidence.
We shall see.