Considering that some of them are mailed, I would think that it wouldn't be BEFORE about the middle of this month, just to make sure slow shipping doesn't disqualify someone. I am also right positive that they recieved a lot of entries. Each one is only 150 words, but I am willing to bet it would still take a really long time.
I would GUESS that it would be announced near the end of this month, but of course I don't work here, and I am speculating entirely. It really depends on how motivated the staff is, and how many entries they got.