I've never watched an episode or read a chapter, I am inherently against a cheap sequel series even if I like the characters. Naruto, for the latter half of its run time (chap. 379 ~ 700) became about resolving conflicts and creating peace. Having conflict past Naruto's run is a little bit of a walk back, because we shouldn't see anything. Naruto brought understanding to the world and it's fine if it gets boring and happy after that.
I have heard that more aliens appear, I know loosely Kara is involved (which their theme is cool), and I know there's a clone Jiraiya. Oh the Kyuubi dies and Sasuke loses an eye.
None of it sounds enthralling or in spirit of the main series.