Original creator Kazuya Minekura (Saiyuki, Bus Gamer) has announced that the Saiyuki Gaiden prequel manga will be getting made into an OVA. There was no release date attached to the announcement unfortunately. Originally serialized in 1997, the manga series has since spawned eight different anime adaptations (the last one being Saiyuki Reload: Burial in 2007). The good news for fans is that once upon a time what used to be ADV released the original TV series in 2003 (and 2005 and 2006 and 2008...oh and once again in 2009) and Saiyuki: Requiem movie in 2005. Then again, Geneon also released the Saiyuki Reload series in 2005 so I'm not even going to begin to guess what has become of the license by now.