I am thinking they could either be commanders that are allowed to be designed via modders. Or commanders that you can use in automatch. But what am I on about?
I suppose that would work, or at least give steps to recreate it. Either way I'll be going to sleep. So I'll leave it to my fellow forum members to see what's up.
I am sure we'll know it would be too OP. But Relic did say something big was coming and along with this I am thinking it is possible that they could implement it into automatch. Although I like the custom game alternative I mentioned in OP.
If designed well, they wont be OP.
It has been said that abilities will be divided into basic, rare, legendary etc.
So I belive you wont be able to make Commander full of legendary.
Rather something like 2 legendary, 3 basic, or 1leg, 2 rare, 2basic.
In that case you wont combine TA with Stuka and fuel conversion, for example.
It will probably not be designed well imo. The reason I say this is because Relic has a history of balance issues.. I assume that this will carry over however if it is possible that it doesn't hooray for relic.
The best way to balance comandos is give everybody the chance to do a custom commander.
IF everybody has a strtong custom comander game will be balanced due to Strong Comander vs Strong comander.
This or complete revamp of all never-used commanders (like they do with the most veto maps, un used comander? ok, revamp.)
Some of those abilities look really fun/cool (particularly for OKW). And Gecko this is somewhat true and already happens (ie mech assault vs soviet industry/152 doctrine/guard motor). But you just need to make sure the combinations are not Over Powered.