According to ANN Millenium Snow is going to be ending on December 10th D:.
She just started it up again last year, why D:.

I wonder if it wasn't popular enough again; if she ran out of ideas; or if this was as long as she had originally intended it to be in the first place, but if it would've only been four volumes, why didn't she just finish it then instead of putting it on hiatus to do Ouran?

/cries.

http://www.mangaupdates.com/showtopic.php?tid=43271