peace all,

In Islam [the religion which I adhere to] we have prophecies indicating how long certain religions will remain on earth...; here is basically what it says about the Islamic, Christian and Jewish religions:

Jesus [pbuh] will return to earth near the end of time; during that period [and a short time prior to it] there will be major wars between Islam and the Christian and Jewish faith.

Jesus [pbuh] will put an end to all faiths except the Islamic one.

Islam will flourish under the leadership of Jesus [pbuh] and several other righteous leaders after him, and then people will gradually start to go astray again, and the world will once more be filled with Muslims and non-Muslims [not sure if those non-Muslims will have any religion of their own, or wether religions like Christianity, Judaism etc, will be reborn], then one day Allah will cause all the Muslims to die and there will only be non-Muslims left in the world, and shortly thereafter, the world will come to an end.

So that will be the future of the three Abrahimic religions.

Peace.