According to this blog, this week’s issue of Young Magazine is announcing that the upcoming new XXXHOLiC OAD will be released along with volume 17 in the Spring of 2010.

Thanks xsayukix for letting me know about this!

So the schedule goes as following:

December 22, 2009 – XXXHOLiC #16.
Spring 2010 – XXXHOLiC #17 with limited edition OAD.

Seems like XXXHOLiC will go on for a little longer. Personally I don’t like that, but oh well xD

I’m starting to think the series has been extended beyond CLAMP’s original plan due to its popularity.