It's new, it's beautiful.
This means it has a lot of potential to be a good game, and based on everything that has been talked about, it really sounds like GG is doing this right.
The main character is a woman, which isn't done that often, that's room for exciting new development.
The story is mysterious, and manages to contain "pre-"historic and "post-"futuristic qualities, that really brings a lot of appeal.
(I know post futuristic is a silly concept, but I said it.)
Yes, there are lots of open world RPGs. But how many have mysterious gigantic machine dinosaurs?
How many games, period have gigantic machine dinosaurs?
The gameplay looks varied and interesting, and rather crazy.
The visuals look stunning, and there's a lot going on.
I haven't been this excited for a game since The Last of Us.