As one who was greatly disappointed that we never got the mission arena, where you could join arena-generated missions and build rank, regardless of arena population, I'd still like to see some element of this added to the MA. Say, once per hour a bombing raid mission with some minimum number of bombers launches to attack a randomly selected strat target of the opposing country(s). Or maybe an ocean convoy of merchant ships leaves port, destined for some other friendly port across the map; maybe if the convoy makes is intact, all the friendly bases within a certain range of the port are suddenly restored to fully repaired status. In either case, "Intel" would announce to all in the arena that such a mission was commencing in x-number of minutes, so players could jump into the mission or mount a defense. It could be designed to be tailored to arena population and player distribution across the countries. We really haven't seen anything really game-altering in quite a while. And it seems like a lot of the code work for this has already been developed.