The Expendables 2: Smaller role for Schwarzennegger?

It was said that Bruce Willis and Arnold Schwarzenegger would have “substantial” roles in The Expendables 2, up from their fleeting, but endlessly cringe-worthy, cameos in the first film, but according to Schwarzennegger himself, or at least a quote attributed to him by the Global Arnold fansite, Schwarzenegger will only be filming for four days on the film:

I fly in a few days to Bulgaria and stand for four days for Sly Stallone’s Expendables 2 in front of the camera. The rotation for the first real comeback film which begins on the October 17th in New Mexico for Last Stand, an action Film, in which deals with drug smugglers, I play the sheriff.

Anyway, here's a photo from the set, with Arnold Schwarzenegger, Sylvester Stallone and Bruce Willis: