After a very long time with no communication, word filtered out from the Room 636 camp a couple days ago.
There's good news and there's bad news (that's how they put it).
Bad: The original publisher has decided not to publish the anthology.
Good: Apparently two other publishers ("one major" they say) are still looking at it. Contributors have been promised a definitive answer on the life or death of this project by June "at the latest".
Color me somber.