What ElAurens said. I'm not arguing against using the SDK, mind you, I am argueing against the obvious believe in the fairy tale that once the SDK is out the mods will appear as if by magic, creating a land where milk and honey flows and grilled doves fly straight into the player's mouth.
Working for CloD will be a serious undertaking, both in time and development input, and it will require a lot more details to make them approach the quality and depth of the systems that MG has already modeled. It may take years for real quality to appear ... Just saying.