My guess is this:
Germans will be again considered OP like hell, most of people will scream nerf nerf nerf, and they will be nerfed until nearly unplayable. People will continue playing them in a bigger proportion as they did with Ostheer and still do, no matter what, so that will be the "balance".
Related to overall balance, this will be screwed forever with 4 factions. I am 100% percent sure. Take into account that vCOH was not so quick with add-ons and they still had huge problems in balancing factions. Now they are even more in a hurry to issue this add-on.
Conclusion is obvious, isn't it?
Well, both factions will be considered OP as hell, because this retarded, rampaging community do not give a shit when they encounter something new and will use old tactics against new things, which will not end well for them, but instead of adapting to new armies and changing their BOs, they will run to the forums screaming for more nerfs.
Gone are the days where players asked for counters for X, now is the era of nerfing X if your universal spam of choice do not work against it.
I am wondering about one single thing-new factions economies and how much luftwaffe supply and lend lease fuel drops will fuck it up and what ridiculous shit we will see at 10 min mark thanks to that.