A couple of the other items you mentioned -- Sharepoint integration and
Compartment authorization -- weren't even on the map. Many of us have
never heard of "Compartment authorization" until you mentioned it.
Well, that depends on the map you're using. :) I've certainly heard people asking about SharePoint integration with MediaWiki. It's not something that could be handled by core MediaWiki - it would have to be done with an extension, and/or some sort of external connector. Personally, though, I don't think it's worth it, just because I think SharePoint sucks.
As for "compartment authorization", that seems to be just a fancy term for controlling read-access.
-Yaron