To be fair he has been kept pretty busy with other projects where he was a director or producer. I mean Nomura was involved in some way with:
Crisis Core
T3B
Dissidia
Dissidia Duodecum
358/2 Days
Coded and Re:Coded
BBS
DDD
TWEWY
That's a pretty long list of games. He's been relative quieter since 2012 though and that's when Versus was meant to have gone into full production so while I can't imagine he is pleased it's taking this long he has used his time effectively on other projects.
He was also involved with Type-0, but only for character designs.
Also you just reminded me that TWEWY has yet to have a sequel. WHY.