So Wowhead lists a number of new followers in the larest build, mostly Horde ones. But three names stood out to me. Fiona, Gidwin Goldbraids, and Tarenar Sunstrike.
That's the original three companions from the EPL questline. I would be so hyped if they could be recruited to join you on Draenor.
Source: http://wowhead.com/news=241118/warlo...tier17-warlock