User blog:LurkerLordB/Rise of New Religions in the Modern Era

Since the rise of Islam in the seventh century, no major religions have developed that have dominated large portions of the globe. My question is, would it be possible for a new religion to rise to huge numbers in the modern era? Could Sikhism grow in size until it had hundreds of millions of member throughout India and the surrounding nations, enough to break away into their own state in the partition of India? Could the Latter-Day Saints Movement, perhaps without its nasty polygamous phase, grow to become the largest denomination in North America, with many more members than it currently possesses? Could Neo-Paganism have become much more widespread, with millions and millions of members across Europe and the Americas? Could other religions have risen? This assumes that there isn't some cataclysmic disaster that devestates the world, as that could lead to all sorts of religious changes.