@Krieghund:
France is a full power, but that doesn’t mean that it has a separate player. Just as China is controlled (separately) by one of the other Allied powers’ player in AAP40, France will be controlled by another power’s player in AAE40.
Technically, there is nothing that can stop a 5th player play China in AAP40, it’s just that any dude playing one of the minors is going to get bored soon (specially India, that has few to do after round 3-4 saving buy 1 inf and wait the death). AAP40 is a game that, in a realist way, can be played as much by 3 players: Japan, USA, and other playing the 3 minors
Same will apply to Global40: you could have a game with 10 players (USSR, UK, India, China, France, ANZAC, USA, Germany, Italy & Japan), but any player playing a lone minor will be bored soon. I guess, again, that the max viable number of players will be a bit less, in this case 7: USSR, UK, USA, allied minors, Germany, Italy and Japan