Overwatch and Bloodborne are also new IPs, though -- and those are demonstrably the best new IPs this generation.
But yeah, the game looks good. I am personally iffy on Guerrilla Games as a developer. They clearly seem to have aspirations to be a top-tier Sony studio like Naughty Dog and Santa Monica, but we have yet to see whether they can successfully carry out the execution. While I am hesitant about Horizon, the gameplay they showed was very promising. I saw a lot of Elder Scrolls, Monster Hunter, and Zelda influences.