I wonder what happened to a lot of those guys. The last time the SotN team was together was Harmony of Dissonance, though Takeda Takashi did go on to direct both the PS2 games. The DS games were made by the AoS team (with Circle of the Moon's producer, KO-G, doing some map designs). I remember IGA saying that he'd need to get a lot of people together for a new Metroidvania, since of course it wasn't him alone. I guess that means we're gonna need Curry The Kid, since his name popped up in just about every Castlevania since Aria.
And of course Yamane (or Yuzo Koshiro) and Kojima (or Hirooka Masaki).