A Japanese magazine scan has revealed that R2-D2 from Starwars will be a playable character in the upcoming Soul Calibur IV.
It is unclear from the scan whether R2-D2 will be a system specific character like Darth Vader and Yoda.
Here's a Translation of the Profile of R2-D2 according to the scan.
Race: Astromech Droid
Place of Birth: Industrial Automation
Weight: Depends on add on gear
Birth Date: Unknown
Blood Type: None
Weapon: Stun Arm, Saber Launcher
Style: J Type Defense Program
Family: Many Others of the same type
Contributor "NDN_Shadow" has pointed out that this magazine scan might have been Fake.
"This is a fake character. It was photoshopped, original picture is here: http://i123.photobucket.com/albums/o296/Skilletor81/ivyyodawl1.jpg"
Since the poster from the Chinese gaming site also seems unsure of this pic, this is most likely a Fake.