I have a friend who's a CA at a BMW dealer and he told me he just got some new intel about this:
http://www.bmwblog.com/2011/10/26/ru...tion%E2%80%8E/.
Yes, based on the date of this blog entry, it's an old rumor, but consider it revived.
I have no other details at all, including a timeframe, so I can't answer any further questions. Speculate away!