It is something they could implement later on, a Pankration like concept from XI.
Each minion would have it's own special ability and traits, and much like pankration you could go out into the open world and obtain data to augment the stats of the minion of your choice.
Offer a variety of vanity gear as rewards, furniture and maybe even pvp rankings, team based battles etc etc and can develop a little fun competitive monster vs monster battles.
