The smart grid landscape is extremely dynamic as the contributions in this book have demonstrated. We have focused on some of the latest technological developments and the importance of various stakeholder perspectives. We have also provided a variety of international case studies that have allowed us to explore the latest policy developments from Europe to the US and the Asia-Pacific region. This postscript explores the future trajectories of SGs, highlighting three major trends that point the way towards future advances and progress in the years ahead. Future research agenda is also discussed.