Original artist: Asti

According to the October issue of Nakayoshi, a third season of Shugo Chara, entitled 「Shugo Chara Party!」, will begin October 3rd. The scan below comes from the 103rd volume of Tora Dayo.

[UPDATE 08.26.09] – Now it turns out that the new 「Shugo Chara Party!」 series will be part anime, entitled 「Shugo Chara!!! Dokki Doki」, and part live-action. A short Shugo Chara spin-off called 「Shugo Chara Pucchi Puchi!」 will also debut.

Source(s): [1], [2], [3], [4]