According to the official website, a live action stage play of Code Geass: Hangyaku no Lelouch
was announced to be shown from April 7th - 16th 2012 in Tokyo.
Geass Stage Play official website
New information of Code Geass Gaiden: Boukoku no Akito
will be announced at a press conference to be held on January 12th 2012.
Source: Code Geass official website