I want to straighten up some things about this new text about Judas. I interpret the text to mean one of two things.
1) Jesus told judas to betray him as a test of his faith, he failed.
2) Judas had this text wrote after Jesus' death because he was being treated as a traitor and he wanted to make himself look good.
Either way, he was still evil/bad. My conclusion is that this new text contains absolutely nothing new.