Arnie with PERS would have been pretty cool for recreating those intimidating staring out of the corners of his eyes poses.
They'd need to make the eyes squinty though. The wide-eyed look all PERS figures so far have wouldn't be appropriate for Arnie. Mind you he did sometimes have a wide-eyed look on his face like in T1 when he finds Reese and Sarah's car in the parking lot and immediately starts opening fire.