Based on one preview?
Though realistically, psionics haven't been part of the core game (meaning, PHB and DMG) for a very, very long time (and even when they were in 1E, it was a completely optional system that Gygax didn't even really want in there.)
There have already been multiple attempts to add psionics to 5E. No reason they won't try again. But they probably need their own UA playtest (again) after the 2024 rules have been released. I'd still like to see them introduced with a 5E Dark Sun setting, but usable independently.
So, thinking psionics should be in the 2024 PHB is not a reasonable expectation to me.