Tiered Play & EWoM
Maybe what EWoM needs is a change in pacing. We have base units that upgrade to the same base units with better numbers and so on with the exception of a few diplomacy tech extras and hero customization. In short the game doesn't really change much as you steadily rise to power and players can lose interest. Key words here are linear and steadily. The purpose of this thread is to discuss that.
One trick the Civ series of TBS games to keep players hooked is by reinventing itself each age through advancement of technology. Not only do units have higher stats but now receive new abilities like flight with the invention of aircraft and later nuclear weapons, permanently altering the playing field. Fall from Heaven 2 has fully preset units for flavor and strategy that get customization on level up in addition to metagame mechanics like the Armageddon Counter.
Maybe the game needs more preset units like Scions with unique and situational abilities.