We can be sure that nothing will be made public which contravenes the current Egyptian narrative.
I came to realize this comic narrative stuff after someone researched the material used for the mummy process, and found tobacco. Naturally, you can’t suggest that in public because you only find tobacco in the Americas, and the Egyptians never went there...as defined by their concrete-history episode.
I’d almost say it similar to the Catholic Church practice of no round-Earth, until science out-ruled them.