First question is actually if it is possible to manage windows updates with the endpoints. We want to be able to manage updates like SCCM or other endpoints tool. If the feature is not there I want look to bring it up.
While I can’t speak for the FOG Project developers, I would say that managing MS Windows updates is not something that the FOG Project wants to enter. FOG’s focus is cross platform image deployment. I feel that moving into the MS Windows (only) space would be moving in a direction away from The FOG Project’s original charter. Also there are currently free MS Windows patch management solutions like Microsoft’s WSUS. There are other like free solutions like WSUS Offline Updater already in this space. In the linux space there is puppet, chef, and ansible.