I doubt that "official forum" status will ever come.
Windows Central is a private forum and part of the Mobile Nations family of sites: Android Central, Connectedly, Crackberry, iMore, webOS Nation and Windows Central all fall under that umbrella.
There have been some Microsoft employees visiting under official and unofficial presence on the board. IMHO, they get overrun by screaming hordes and it probably is too time intensive for them to try and keep up with all the personal requests for help, input, questions, look at my fantasy renders, "here is what you need to fix," etc. Also don't forget that they operate under Non Disclosure Agreements.