Not long not long not long...! Might even get a rip request in at ffshrine, like... now, in advance.
Placing bets now: in the first video, Hirokazu Ando is a dead certainty (first couple of songs.) I think I hear Shogo Sakai too (that arrangement at 1:38 sounds like him, as does the Dynablade one after, but not sure.) I
think I hear some Ishikawa too (the chippy sounding thing) but I'm not positive. Would be great if all three were involved in any case
Looking at the sound test at 3:34, there doesn't appear to be any visual indication of song composers (as was the case with Triple Deluxe) but I could be missing something. Hope HAL do that again, would be a bit daft if they didn't.
Second video doesn't reveal too much new that hasn't been in other vids, at least musically. As an aside I don't like the amiibo concept, bloody typical of Nintendo and their penchant for milking it with tacky peripherals.