I´m totally against that.
1) Russians, Germans aswell as US forces have a connection to the European battlefields. It doesn´t look totally ridiculous to see Americans on Semoiski. It´s still shit but not as far off as seeing the Japanese invading a French or Belgian village.
You'd have a point if this were a story-driven game. It's a competitive multiplayer game. Who cares? I'd way rather see some army variety and fun. Just throw in some Pacific maps.
2) What competent land army was there fighting for the Axis side other than the Germans? The Italians? Pretty much any of their actions was a failure and the Germans had to come to the rescue. By the time the game is set they had switched sides and what remained was a puppet state in the north.
The Finnish? They pretty much fought their own war up in the north. Hungarians, Romanians etc.? Hardly enough to make a whole faction.
Which leaves...
What remains are the Japanese, but I prefer seeing Hetzers, Jagdpanthers, Nebelwerfers fighting IS-2s rather than a Chi-Ha tank. The heaviest the Japanese could field would be a Chi-Nu, which is around the strength of a Panzer IV (early, 50mm armor).
I'm not seeing an argument besides "I prefer German stuff." The Japanese have a lot of room to be a really cool, unique faction if they're designed properly- i.e. around ambushes, traps, maneuverability, etc.
3) Still lots and lots of stuff not included for the Germans.
I'd say there's some stuff not included for Germans. Nothing that can't be added via doctrines. Yeah, there are some unused German tanks, but the entire Japanese army has gone completely unused. I'm getting really tired of people brushing off the idea of the Japanese just because their tanks weren't the best. There are plenty of other ways to make them competitive. The Panzer Elite barely had any formidable tanks- just hard-to-unlock Panthers and doctrinal hetzers and a Jagdpanther. Their strength lie in their light vehicles (unless you're just spamming assault grens lol).
After playing the first game + the Eastern Front mod and this, I've already waded through five German factions. I just want to see something new. It's gotten to the point where I'd seriously rather have a terrible Japanese faction than another good German one.
Also, if they do release an Afrika Korps faction, it should really at least be a mixture of German and Italian forces, not just Germany again.