This isn't a trip to Talos IV, but rather Rigel VII, where Pike had lost several crew prior to "The Cage" and had him considering resigning his commission.
Also, those guys in the Mongol-looking fur coats are the same race as the brute Pike fought to defend “Princess” Vina in the Talosian hallucination of Rigel during “The Cage”. So we’re finally getting the backstory to that disastrous mission.