Yes, well, Minato also had Ryoji/Pharos/Thanatos sealed inside of him, which is...interesting. Especially if Shadows are a product of Nyarlathotep...though, since Ryoji's also supposed to be the Appriser of Death, which implies some sort of connection to Nyx (unless there's stuff on that revealed in the Answer which I haven't gotten to play quite yet)...which makes me wonder just how exactly that all plays out. Perhaps Thanatos was originally something else and Nyarlathotep got his hands on him? Hmm...much speculation.
And yeah, Minato being Philemon 2.0 would probably explain Aigis awakening the ability to summon multiple persona and such, if he did what he could while basically being the seal to hold back Nyx, from what I understand...hmm. While I don't really think this works out at all, imagine the irony if Ryoji had been a corrupted Philemon imbued with part of Nyx and Nyarlathotep's corrupted personas somehow, leaving Minato with some of his potential. The two of them, one forced to hold back the other, leaving both of them helpless...my, how happy that would make Nyarlathotep, if his machinations could result in that.
...that's probably too convoluted to work, though, and my Persona lore isn't as good as that of others...still, it's an interesting, if probably unworkable notion.
And yeah. The system of Persona 1 and 2.1/2.2 doesn't seem to mesh that well with Persona 3's, but it's interesting to give it a shot and see if one can come up with a crazy, mind-hurting way for it to work. Ah, how I look forward to Persona 4. :snigger: