I think I still have my Coalition overhaul document somewhere, but there's a lot of potential regarding that faction I think. Adding more big-ticket content (new house/economy/lore) into this game with such few players probably would not yield any long term success.
The Coalition being buddy buddy with all the major house unlawfuls never really made any sense too me. I think it would be cool if they were to stab all the unlawful factions in the back and set up a larger camp using stolen supplies and goods.
But of course a development like this would take months to get story sign off and then implementation would be a whole other story. But going back to their roots would be sweet.