I do believe he is coming. I do not prescribe to the Pre, Mid, or Post-Tribulation doctrines, nor do I hold to the modernized version of a "Rapture", because of this, I believe that they do not meet the true heart of the scriptures.
For instance, the Temple of Jerusalem was destroyed (Historical Fact) in 70 AD by the Roman Army. The Roman-Jewish war (Historical Fact) started in 66 AD and ended when the last stronghold (Masada) was defeated in 73 AD.
Christ declared many woes to fall upon the generation of Jews of his time (Matthew Chapter 23 - which coincidently doctrinally reveals that Christ is the One True God of Ancient Israel because he mentions "How many times have I gathered you like a chicken gathers her chicks" in the same 23 Chapter of Matthew).
When we compare the parable of the Wheat with the Tares. I believe Christ has declared very profound insights into what will occur in the last days.
It is through the calamity and distress that came upon the city of Jerusalem, the factions who believed that all is well in Zion, and who believed that they were going to be saved from Roman Oppression.
The destruction of Jerusalem and the destruction of the Temple ended the Jewish age, epoch, era, and brought in a new age.
The destruction the wicked and unbelievers will face is going to be worse than what happened at Jerusalem during the Seige (see Josephus and Tacitus).