Sage 100, 100c, 300, 300c ship November 2, 2015. Partner webinar 10/20/15 will go over features, new business care (any bets on what this offers?).
With respect to Business Care, I think Sage mumbled something about people having a direct support contact (name of a person). Not sure if that will be part of the announcement. Sage could probably also offer unlimited support in some fashion - perhaps to 100c licensee's.