I played around 8 hours of the game. Around the first two are very similar to the first one in terms of gameplay, setting or narrative, normal in a direct sequel, but after that starts to branch away in a very cool way in terms of gameplay, setting and narrative.
The first location, the snowy area that appears in the trailer and where Krato's cabin in the wooks is located, feels pretty samey but the next main big area is very new, different and super cool. Even in terms of environment art and lighting makes a big improvement and change and there are many new mechanics unlocked making the game feel very fresh. The narrative and the story also feels fresh and better than the 2018 game and keeps you hooked wanting to know what happens next.
The first couple of hours were very good, but the game keeps improving and surprising you with very cool stuff and twists you weren't expecting. Without spoil anything and mentioning only stuff seen in trailers, I saw the cutscene with Tyr in a prision that appeared in the trailers and arrived to the location you go after that. Most of the stuff shown in trailers are from the very first few hours of the game.