This is short, due to the fact I am working on other reviews and such.
Co-de X SEGA FEAT HASTUNE MIKU is a collaboration with Good Smile Company. There has been a recent leaked image and might have a chance to have Project Mirai costumes released in the larger scale. I actually like this idea and we dont have to spend a arm and leg for miku figures. We might also have hopes up for other characters.
My thoughts might be that SEGA is currently asking GSC to mold various fan loved costumes, not just from mirai. We may get project diva costumes from the first game all the way to the most recently announced costumes. Remember, SEGA owns a lot of copyrighted designs for VOCALOID CRYPTON Characters.
But I might be wrong and maybe they will have exclusive costumes for the line.