For many years, I’ve been suspicious of the so-called ‘New Perspective on Paul‘. It’s only in recent years, as I’ve read the works of people like Tom Wright, that I’ve come to see it as far more biblically respectable than I previously thought.
Recently, Frank Viola has interviewed two scholars who propound this view. The conversations are about far more than this issue, of course. I commend them to you. He has interviewed N T Wright himself and he has interviewed Scot McKnight. They are well worth a read.