Board Thread:Naruto Discussions/@comment-24531362-20140904111518/@comment-24593592-20140908205414

Kirsty Mikaelson wrote: It depending on what it means

”The Fourth Shinobi World War finally concludes! And then, that man will…!?”

But this could translate to something good or bad. Also it could be speaking about Sasuke and about the path he will take and what he will do.

If it was Sasuke then they would have most likely used his name instead of "that man" like in the other previews. They used "mysterious old man" in chapter 670 preview for Hagoromo. And "that person will" in chapter 679 preview for Kaguya.