I'd like a deeper look into the gameplay mechanics and some of the new bosses. There's that "Fallen-Star Volcano" area that seems to be the expansion's hubworld of sorts, but we still don't know much about it beyond a single cutscene...

reminds me of Outer Wilds...

I really like the vocals in the music. Very dreamlike. I bet whatever final boss is waiting at the end of this DLC will have them as well...