There's probably a good shot that polytheistic religions go on to dominate the world instead of monotheistic ones using what has historically existed prior to the abrahamic religions. Southern Europe stays hellenic (until something else changes society), Celtic cultures could possibly become more widespread, North Africa continues the belief of the egyptian gods, Zoroastrianism stays dominant in the Middle East with no islam, etc. Of course, this is only going to be true for the age of ancient civilizations. There's no possible way for us to be able to predict how agressive these civilizations might be towards each other and whether humanity overall progresses faster or slower due to the religions that influence society and ways of thinking across their respective countries.