This is a little confusing.. I'm even confused myself.
Me and billnye had been toying with the idea of doing a cyrillic addon set to match beige for some time. I didn't want to add it to the GB myself, since I did not want to delay things further, but we knew someone who was interested in doing it.
Keyzus PMed me about his idea, which was the same as mine and billnyes unannounced idea, and I told him we had it covered. Apparently he did not get this PM.
The Cyrillic mockups you've seen are from
http://kappakapps.com/ who has been working to get it organised. This is where the Cyrillic addon GB
that I was aware of will be running.
I was not aware that Keyzus was continuing after I told him we had it covered.
This is a bit messy..