Something that may help players feel like they aren't wasting their time every season wipe and could help with player retention would be some kind of long term incentive that carries over. I don't play ARC but I thought I heard they had some kind of mechanic that gives you an extra skill point every season that you accomplish some challenge during the previous season. Something similar for Marathon could be something as benign as 2 extra lines in your vault for every season that you reach VIP with all factions. What other incentives would help with player retention and long-term player satisfaction?