I'm not getting any completion dates for proposed builds in my SY. I think I've seen this before for the first build of a class (or maybe first build of a SY), but it seems to have gotten worse. It's a naval SY, was the only one, and first tooled class (a geo-survey).
Also, in 4.77, the completion date displayed doesn't take into account stockpiled components. I assume the same is still true....
John