It is important to note that without religion, there is no purpose to life. Without purpose, society stagnates. It is only logical to assume that for society to advance, freedom of religion must flourish. In the future, people will accept that not everyone is the same, and though they disagree, true religions will shine, in that they do not encourage the killing of others.
Christianity and Judaism are most likely to continue, as people realize that hate will never solve anything.