Eastern Front is not going to last 1000 years you know ;).
It is very difficult to gather a team to do what we are doing, we have all this time developing soviets and ostheer and it is not near to be finished. Modern Combat needed four years to finish their mod more or less.
Supposing you want to do it by yourself:
The chances you can assemble a team with good 2D/3D artists and animators are very slim. Also, you need to consider the time you will need to finish your stuff, I don't think one year would be enough, and we don't know how much time left it is for CoH. And the last and more important reason, cluttering CoH with as many factions as you can or many units as you can is doomed to fail. CoH engine was not designed for the way we are using it, hence new factions are full of hardcoded bugs and if you add a gazillion of units you cannot expect your MP matches last too long without crashing.
Atm several players have crashes with EF and soviets, we expect this rises when OH and campaigns are released, due to the amount of units. We will try to optimize the units we make as much as we can, but this certainly is a burden for players who just want to play the mod and for those who want like ten factions in CoH.
Mors Indecepta
Might controls everything, and without strength you cannot protect anything. Let alone yourself...