In my experience the game is only playable by replacing ALL land and air units with chips bar the single infantry atop each stack. Even then it can still get crowded with units of 4 or 5 nations sometimes piling into a small tt.
So for me a future version needs a few more infantry each and drop all the other land unit minis; and a big pile of extra chips, a different colour for each unit type.
More likely a second edition will feature something along the lines of task force cards & markers; AH is not going to admit to the redundancy of plastic minis. Blow up boxes are a no-no.