You do know there's a difference between patches (fixing existing issues) and adding content through either DLC or a general update don't you?
I don't think most of this forum understands this. Patches are typically pretty small fixes. Granted, PD has made some rather significant changes via the updates, but additional cars and courses just aren't going to happen that way. I'd go so far as to say that something like a livery editor might be too significant for a 'patch' as well.