Thanks to [pyroneko], all of Suka Suka is now subtitled in blu-ray. It's only the 720p version but oh well, it will do.
It's only been half a year since Suka Suka aired, so it's still a little too soon to rewatch, but it's important to grab these things while they're seeded.
So far I've discovered six new good songs from Xenoblade Chronicles 2, presumably all by Mitsuda. At the least, I'm giving Mitsuda credit for them all. I've only gotten to listen to about a third of the soundtrack, though. The situation is in too much flux to do a good music 10.0 update. There should still be many more Mitsuda songs as yet unreleased.