Rica Matsumoto, the voice actor for Satoshi in Japan, has posted a picture of a script from an upcoming episode on her blog. The episode, Yukimenoko in a Snowstorm 吹雪の中のユキメノコ(仮) will air sometime in 2009. The script cover says the episode is #114 and that the title is tentative.
Source:
http://ameblo.jp/ricachanhouse/entry-10173971434.html#main