Exactly, they aren't going to make new metal molds for the Vf-1S. Just new mold for the Fastpacks. Plus 6 months from now they can sell the fastbacks separately.
I read in a translated article that the fastback armor for the 1/48 is the 1/72 armor rescaled so not much work had to be done making the armor for the 1/48. Anyone else read this (forgot where I read it)?