The need to feed
If the game reinstated the need to feed your troops feature it would force players to raid for resources, this creates more opportunity for conflict, what a war game should do.. These armies of billions..it's stupid. Need to feed would take all these armies out of the trophy case and place them on the battlefield.
It would greatly reduce the numbers of units and infuse a small amount of parity.
Yeah, I know..the big army players would object and Plarium would lose money..who cares if it's not fun anymore..