Genshin Impact 2.6 update release date and expected banners so far

sportskeeda.com:

Genshin Impact 2.6 is highly likely to launch on March 30, 2022, for several reasons. First, there's past precedence for every version update lasting for 42 days. The 2.5 update started on February 16, 2022, which means that 42 days later would be March 30, 2022.

Second, the time for the Three Realms Gateway Offering was originally slated to have the following duration:

If Travelers pay attention to the Three Realms Gateway Offering event screen's "Time Remaining" section, they will notice that it's scheduled to end on March 30, 2022. More specifically, it ends at 5:59 AM (GMT+8), a minute before maintenance usually begins.

Maintenance for version updates has consistently begun at 6:00 AM (UTC+8), with them typically finishing around 11:00 AM (UTC+8). Hence, it's safe to assume that Genshin Impact 2.6's maintenance will begin at a similar time, especially since Three Realms Gateway offering ends a minute before that time.

As far as past precedence goes, here are the dates between recent past version updates:

Thus, players can also see that every version update lasts for 42 days. Adding the number of days to the 2.5 update's date gives players a release date of March 30, 2022. That date also aligns with the Three Realms Gateway Offering's "Time Remaining" section.

The only confirmed banner via leaks is that Kamisato Ayato will debut in the first phase of Genshin Impact 2.6. It is not currently verified if another banner will run alongside him or who the 4-star characters are. Similarly, the weapon banner is unconfirmed, although his signature sword (Haran Geppaku Futsu) is likely to appear.

As far as reruns go, there are several unverified leaks stating that some of the following characters will get one:

Several of these leaks