It is coming but as indicated on the OS Upgrade Schedule thread it says "Coming soon". Again they have until the end of Q2 to bring out the update. Stay tuned and keep a eye out on that thread to see when it gets updated.
Well if it's saying "Coming Soon" that's the information they have until they are told to post a actual date. Until then sadly it will say it that. Jusy keep a close eye out on it and watch other forums just incase something leaks out