The four gospels - Matthew, Mark, Luke and John were written well before the end of the first century. Later, like the 'gospel' of Mary, 'gospel' of Thomas and now this newly discovered 'gospel' of Judas were always considered to be heretical since they had gnostic tendencies. This so called gospel will not have any effect on Christian theology. This is not a new thing that the theologians are facing. Even if a hundred such 'gospels' are discovered tomorrow, it is not going to change Christian theology because it is based on the solid teaching of the four gospels and other books of the Bible.
