<divclass="quote">2A02:2788:8C4:36B4:943B:6873:B8DC:88B2 wrote: Question: Will Asuna and the other characters be in this new arc?</div>
Yes. Though from I what I heard Asuna and the regular SAO characters (aka Kirito's Harem) wouldn't appear until the end. Kirito will once again be the main character but a whole slew of new characters will be introduced. Again...
Don't rely on hearsay. Asuna has her parts during the first part too. But Alicization is longer than the entire anime up to now (S1,EE,S2,maybe even with Ordinal Scale), so obviously, a ton of new characters will appear and get a lot of screentime for development this time.
But yes, the majority of the old cast won't have much screentime until the second part of Alicization.
rath is a new project . kirito will be in a soul translator another full dive nuit really awesome than the nerve gear amusphere. if u wanna know more read the mangs of sao alicization arc at any online manga website
Why should people read the manga if it does not cover any substantial info on Rath? You need to read the Light Novels to actually get what's going on, the manga does not even cover the first half of the first volume of this ten volume long arc.