User blog comment:Michael.Dreams/The Created and what they could be for Halo./@comment-15465323-20170412202358

Well we still miss one game for the new trilogy to be complete and according to some in-game sources some, if not most, of the Grunts, or Unggoys, have already allied with the Created (hence the Goblin mech boss you can fight in warzone games). While I totally agree that the Created Crisis will leave the galaxy shaken to its core we have no idea what they have in store for the next game other than that shit will probably hit the fan hard on a galactic scale, as it already is at the very end of Halo 5: Guardians.

As for the Covenant I think its days are truly and forever done for now that Jul 'Mdama is dead and the last Covenant stronghold have fallen to the Swords.

I personally think we won't be seeing much of the regular Covenant enemies in Halo 6.