I really liked how the soulknife as a rogue subclass and turned out. As for the rest of it, I would rather not have psionics in 5e at all, then have it as a subtype of magic.
— James Lima (@jamesclima) December 22, 2019
Psionics have always been in 5E. For an example, see the intro of the “Monster Manual” for info on monsters with innate spellcasting that is psionic. As we show there and in options like the Psychic Warrior and Soulknife, psionic effects can manifest in a variety of ways. #DnD https://t.co/ghqeVeCbqD
— Jeremy Crawford (@JeremyECrawford) December 22, 2019