It's been talked about here and there but its one of those older systems that the dev team is unlikely to touch because 1. It's overworld content and we know how much they "love" to add to that and 2. It's also and older system and we also know their mentality on going back to tweak and improve on older content( they don't) so we can talk about it sure. Will they add to it? Seeing as they haven't touched on it since the middle of HW, as much as I'd love for them do literally ANYTHING new with companions, I'm not holding my breath.