It appears Hit will be back and it looks as if he has Son Goku in his sights. However, is this Universe 6 hit or is this a version of Hit from the main universe (Universe 7) Hit? Check out the video below from resident YouTube Dragon Ball Z expert Geekdom 101.
As described in the video, Hit will appear for at least two episodes and possibly longer. While this won't be a full-blown 20+ episode arc, it's still a nice change of pace from the current slice-of-life episodes airing in the wake of the culmination of the Future Trunks arc.
Dragon Ball Super Arcs
Battle of Gods arc | episodes 1-14
Resurrection of 'F' arc | episodes 15-27
Universe 6 arc | episodes 28-46
Future Trunks arc | episode 47-67
Filler | episode 68-70
Hit Returns | episode 71 - ?