How could it be a rerelease? Ichiban Kuji is a line of figures of it's own. It's like MegaHouse announcing a Shinki Exellent Model and people thinking it's a reissue of a Konami action figure
It's definitely some new figure(s), though I'll say it right now, no matter how good they look, Shinkis have no business not being Shinkis. That Figumate Strarf sucks not only for the different style, but for not being a proper Shinki.
Hopefully they'll at least keep the scale and detail the joints, and only if it looks just like a better detailed Shinki it'll suit mine and most fans' interests. Removable armor could even be a gimmick.