He is looking at three possible scripts. Here's a translation of the quote:
"Currently I'm reading three scripts. One topic/script, which I considered a long time ago before governor, is delighting me particularly. In it I would play an older [German] soldier, who gets the order at the ending of the war to kill a bunch of kids. But he doesn't do it and get them to safety at the risk of his life and it has all kind of adventure. This script is based on a true story!"
TheArnoldFans says the movie that Schwarzenegger is describing is With Wings as Eagles, which was written by Randall Wallace (Braveheart, We Were Soldiers).
The story is based on the true life story of a German officer who doesn't agree with his Nazi party and instead helps the American POWs escape.
There is no confirmation on what the other two scripts are, personally i would like to see him in a lead role for expendables 2 and maybe another collaboration between him and james cameron maybe true lies 2 or one of the next two avatar sequels?