Genshin Impact 3.0 will introduce the Tree of Dreams which is quite similar to Inazuma';s Sacred
Sakura. Here players will donate Dendro Sigils for various rewards. As per current leaks, each level
consists of 35 Dendro Sigils worth players capable of going up to Level 20 out of 50.
By viewing the image that is being shown, few players have named it onion.

According to the leaked tweet, every level that ends in 5 gives players:

•  1 Crown of Insight
•  200 Adventure EXP
•  10 Mystic Enhancement Ores
•  52,000 Mora

Genshin Impact players will have to use 35 Dendro Sigils to level up irrespective of their current
level. This also refers to a necessity of total 1750 Dendro Sigils. There are still no leaks regarding the
Dendro Sigil locations and it's not even that important as levels 21 and beyond are locked until some
point after Genshin Impact 3.0.

One video leak shows how everything in Genshin Impact 3.0 will look like. The older leak has few
differences compared to the previous tweet especially in the point where every level has 52,000
Mora rather than 50,000. It is also devoid of Adventure EXP. 

There's some more information about this new tree. Its location is shown on Sumeru's map which is
close to a Teleport Waypoint. 

There's also some new namecards that the players in Genshin Impact can receive in Sumeru.
The old leak also claimed that players can't level up much except Level 20 in Genshin Impact 3.0. 
It is worth mentioning that the content in the leaks would definitely change such as, the Tree of
Dreams used to require 30 Dendro Sigils per level rather than 35 as it does now.