Board Thread:Questions and Answers/@comment-39032896-20190405035223/@comment-39032896-20190405221526

Gsimenas wrote: That "mystery" was just there to introduce new antagonists that will have a central role in the second half of Alicization. The GGO scene wasn't even present in the novel, so it has no importance to the plot whatsoever. I'm asking purely about the anime, not the novel. If the anime is already adding things in that weren't in the novel then its not far fetched to think they may add more.

So, is the entire SAO III just Underworld? And what comes after this Arc?