Maybe sometime after they have a 2nd faction? They're in the process of reducing the KDF in scope, since they don't have the resources or bandwidth to develop them out as originally planned. So at the moment, as great as it would be, adding more factions really wouldn't work.
Yeah, they should really work on the 1.13rd faction so that one day we may legitimately call it the 2nd faction. Adding another faction doesn't make any sense because it would end up even more half assed than the Klinks. Sorry for my wording, just naming things fittingly.