@Shadowcraft1Now that the core books are out, how soon might we expect the rules for the often misunderstood psion? We have no psionics announcement yet. In the meantime, you could emulate a psion with a warlock who serves the Great Old One.
— Jeremy Crawford (@JeremyECrawford) February 28, 2015
Nerdarchy.com and their videos on youtube have several reasonable psionic classes.