Just to tell you how goofy the glitch was when I ended up with two time travelers, what I had done while messing around with the EP and Traveler was befriend Emit in the present and invite him to travel to Oasis with my sims as a traveling companion. I was then gently chastised by our mod developer for even thinking of trying such a thing, let alone asking what was really supposed to happen next. Based on that conversation alone, I wouldn't recommend that method at all. ;)