According to several bookstores, Kobato. #5 will be released on December 24, a year after the release of the previous volume. The 12th and final DVD of the Kobato. TV anime series will be released on the same date.
Also, according to a few japanese bloggers who got hold of the latest Bessatsu Shonen Magazine issue, the XXXHOLiC one-shot originally published in Weekly Shonen Magazine featuring the Tsubasa cast will be carried in XXXHOLiC #18 (out Oct. 15). It will have chapters 205~207 and the one-shot. I know some of you were wondering about that 😉