Just to get back to the topic, could what has been released be SHA-1 hashes of encryption keys? If we remember back to the Wii, Nintendo was rather inept at implementation. I'm guessing that they took more precaution with the Wii U, but is it possible that they didn't fully learn from their mistakes? Nintendo had originally implemented a comparison that was similar to comparing strings in C. Those comparisons stopped at the first NULL byte (which seems to be coming up a lot lately) and ignored the padding. Marcan and Bushing gave a really interesting talk about this several years ago. Turns out, that they could fake signatures without much effort. I'm sure Nintendo didn't make that mistake again, but this has me relishing in the ideas of what has or can been done.
Day 8: First key accessed through magic.
Day 11: Buffer overflow would be my guess. They speak of getting drunk, which implies having too much too me.
Day 14: Using their newly found powers, this one was just offered up by the system without a fight.
Day 30: The remaining keys?
This would be 5 keys. Quickly summarizing, the Wii had an ECC key and certificate, NAND keys, a common key, an SD key and a Root certificate. I could be completely wrong on every aspect here, but it sure is fun speculating.