The ZIPS projections are pretty optimistic about Andrew McCutchen having a bounce back season in 2017. They have McCutchen projected to hit .276/.370/.844 and are projecting him to lead the team in WAR (4.1). I would definitely take those stats from Cutch next season.
Fan Graphs is also optimistic about Tyler Glasnow next season. His projections are a 3.60 ERA and a 3.83 FIP which would certainly be huge for this team. They also have him striking out 146 batters in 122 innings. One interesting thing from the projections are Glasnow pitching more innings than both Ivan Nova (119.