I really like the music of the first game so hopefully sequel's music will be as good as the first one's.

The physical collector's edition (quite limited print but not sure how these sell) has it but at the moment it's a bit pricey for my current situation so it would be nice to be able to get it as a separate purchase at least.

Will the publisher/developer add it here too? FLAC is nice.

According to the faq on Steam, the soundtrack will be available separately. But it doesn't say what that means. Since the box stuff comes with the game then I'd have to say its more like you are looking for or their faq would be misleading.

The same person did the soundtrack so its just as great as the first game :)

You can get the soundtrack separately on GOG and Steam now for 7.99.