I would love to see faction based wars on the different planets. Some could be planned and u have notice ahead of time others would be a surprise. Winning a certain number of these would put that faction in control of that particular planet and potentially give buffs or bonuses for however long u control that planet etc. And it would populate the world with faction armies and bosses hostile to other factions. And more of a tie to a particular faction so u can't just instantly change. Like a reputation system the more u do u gain favor but switching decreases favor with other factions.