The continuation of Sword Art Online’s third season is not far now. When I say third season and not fourth, it is because there is no news of a fourth season so far. It is actually the second half of the third season. There is no doubt that Aniplex wants to adapt the entire SAO series into anime. The production companies have also confirmed that the third season will adapt the entire Alicization arc. A direct sequel to Alicization is currently under work. It is possible that it may the final ending of the story.
The pacing for the third season of Sword Art Online is faster than the previous seasons as there are ten books to cover in comparison to the eight books which have been adapted by the first two seasons. So, it was already expected that many details from the novels would be compressed and wouldn’t be a part of the anime.
The fans started the comparisons between the light novel and the anime since the third season started. Also, in the first episode of Gun Gale Online, there was a GGO Asuna. The fans also pointed out that the Zakkaria Sword Arts Tournament from Volume 10, Chapter was skipped.
Sword Art Online Season 4 update
Now, if we talk about the fourth season then so far, there is no update by Aniplex or A-1 Pictures. It will obviously take some time before they release any news about the fourth season. The update for the fourth season is not easy for anyone because the number of volumes for the Unital Ring is unknown. If we assume that it will have 10 volumes like Alicization then the new story arc would be done by 2022 or 2023 by Reki Kawahara.