Robin, could you be a bit more specific on what you are looking for here? The roadmap for FastTrack is published in the Office 365 roadmap at https://success.office.com/en-us/roadmap - is there anything further that you are looking for?
I was curious if there would be another offer for 2017. The current offer is only for purchases done before the June 30, 2016 deadline. Because of our volume licensing renewal process, we are not able to purchase full Office 365 seats until January 1, 2017.