https://screenrant.com/rings-of-power-adar-recast-reason-joseph-mawle/

Adar serves as the villain in the Rings of Power season 1, but Joseph Mawle’s role was recast for season 2. Why is a new actor taking over?

Why Sauron Looks Different In The Rings Of Power Season 2 (https://screenrant.com/why-sauron-different-rings-of-power-season-2-annatar/)

Sauron returns in The Rings of Power season 2's trailer, but looks vastly different compared to season 1, and there's a very sinister reason why.

What The Black Tower At The End Of The Rings Of Power Season 2's Trailer Is (https://screenrant.com/what-is-tower-rings-of-power-season-2-trailer/)

The Rings of Power's season 2 trailer ends with the reveal of a sinister-looking black tower, but there are several Tolkien locations this could be.