I am not that good at speculating about the end times and prophecy. One of the more prolific and intelligent teachers here is Joel Rosenberg. I  read him as much for his reporting — because he does manage to talk to people from the Middle East — as his futuristic interpretation of revelation.

But there are clear mentions. One is the following….

Revelation 15:2-4

2And I saw what appeared to be a sea of glass mixed with fire, and those who had conquered the beast and its image and the number of its name, standing beside the sea of glass with harps of God in their hands. 3And they sing the song of Moses, the servant of God, and the song of the Lamb: “Great and amazing are your deeds, Lord God the Almighty! Just and true are your ways, King of the nations!4 Lord, who will not fear and glorify your name? For you alone are holy. All nations will come and worship before you, for your judgments have been revealed.”

via Daily Lectionary Readings — Devotions and Readings — Mission and Ministry — GAMC.

In the end, people from every nation will worship God. This in part was fulfilled by the missionary movement — which exploded during the Victorian era and continues until now.

Christians are not the only people with teachings on the end. The Shia branch of Islam look for the Mahdi, who will conquer the world for Islam. Well, that contradicts the plain text here. Moreover, in most if not all nations there are those who follow Jesus. Islam, again, mirrors Christianity: the disciplines the faithful have are not without value, but the end is the exact opposite. Note that all nations shall worship… is sung by those martyred.

Our duty to endure remains. We are to glorify God, whether we live or die.