Predictions in my eschatology are speculative and fallible. Here is my timeline for events in the near future. The order of events may be somewhat different that the list below. Many events overlap with other events in time.
1. I believe that Iran currently has a few nuclear bombs, and that they will disclose this to the world soon.
2. The disclosure will cause other extremists groups to wish to ally with Iran, even if previously they were enemies. ISIS and Iran will make a pact to work together against the West, and to establish a worldwide Islamic State (a goal of all extremist Twelvers).
3. I’m aware that Iran has just recently launched attacks on U.S. troops in bases in Iraq. This attack and the call from the Iraqi parliament for U.S. troops to leave may result in us leaving, and in Iran helping ISIS take over Iraq, and later Syria. This is the beginning of a conflict that will worsen, again and again, until it becomes World War 3.
4. Iran will use nuclear blackmail to pressure other Arab Muslim nations of the Middle East and northern Africa to turn over control of their nations to extremists who are allied with Iran and ISIS.
5. Iran has long wished to take control of Saudi Arabia. Eventually, they will succeed. In the most likely scenario, the Saudi rulers will be blackmailed by Iran into leaving the nation for exile, allowing Iran to take control. Otherwise, they face two possibilities: a massive invasion of troops or being struck with a nuclear bomb. The West will not provide the troops or equipment needed to repel such an invasion or needed to defend against a nuke. Therefore, the Saudi rulers will be forced to leave for the United States (Washington D.C. area).
6. Iran and ISIS will send out a call for recruitment of troops; millions will join them. They will ready enough forces to flood Europe with highly motivated poorly trained troops.
7. Once the Arab Muslim nations of the Middle East and northern Africa are all controlled by the alliance of Iran and ISIS (based in Iraq), they will begin to threaten the West. They wish to establish a worldwide Islamic kingdom. But the Western nations will not submit to their threats.
8. World War 3 officially begins when Iran sends a ship with a nuclear bomb on board to strike New York City with a nuclear explosion. The most likely spot to set off the bomb is next to the United Nations headquarters. The damage will be vast. But the U.S. will not respond with a nuclear attack, as the fallout might drift into friendly nations, and also there are too many troops in too many locations. No single or few locations would be right for a nuclear strike.
9. About this same time, probably before World War 3 actually begins, three events from God strengthen the faithful of the world (faithful Muslims, Jews, and Christians, as well as other persons of good will) before the tribulation begins: the Warning, Consolation, and Miracle.
The First Four Events of the Tribulation (the End Times or Apocalypse)
A. World War 3
B. severe civil unrest worldwide
C. famine especially in wealthy nations
D. death from many causes and the fear of death