They're licensed. By Cms corp. Who make horribly expensive doll figures. There was a bit of stuff running around last year about the prototype of this.
Here
And Cms blog post here
Breifly talked about in the
figma thread
It looks like the sign under Minerva blabbles on about the Nightbeat colour being a Wonderfest Summer special.
Can't see anything about the normal colour version. Nor Ginrai. Wouldn't surprise me to see a general release of these, although they usually go for about 8000 yen or so.
Ooo, More info
from Here.
Yep, nightbeat colours are fro Wonderfest Summer. But Minerva and Ginrai will get general releases. The G1 nightbeats were borrowed from Tak tom for display. Normal Minerva will get a release along the same time as the Nightbeat colour version. So Summer 2012 for them (winter for us). No word on whether Ginrai is the same time as Minerva, but I ave a feeling it will be from what was read.