So, in eschatological circles there are a couple of major 'camps' if you will. Main line traditional denominations tend to be a-millenial, while non-denominational, pentecostal, charismatic types are almost all pre-millenial.
There is, of course, a lot of variety in both camps.
I used to be pre-millenial but have, in the last few years, become a-millenial in my views.
In my opinion, most of the pre-mill views go wrong because they are largely based off of dispensationalism, even if they themselves are not technically dispensational in theology.
The primary issue is the view of Israel and the Church. Dispensationalism is a reactionary view against replacement theology. In replacement theology it is believed that the Church has completely replaced Israel, and natural or genetic Israel is no longer of any theological or eschatological importance. Dispensationalism reacts against this by creating a sharp distinction between the Church and Israel, viewing the Church as a primarily gentile institution that was kind of a patch up job after Israel rejected Jesus at his first coming.
This affects eschatology because in the dispensational view (and virtually all pre-millenial views) most old testament prophecies concerning "Israel" are held to be unfulfilled and must yet come to pass. They must be taken mostly literally, and they must deal with natural/genetic Israel. In the replacement view most of the old testament prophecies concerning Israel are believed to have been fulfilled by Jesus at his first coming. In this view the prophecies are symbolic and spiritual and deal with the institution of the Church as the congregation of God.
I don't fully believe replacement theology, but I also believe that the dispensational reaction is incorrect as well.
I think the correct biblical view is that the Church is a continuation of Israel. It is neither a replacement, nor a stop gap temporary measure. The Church is Israel, but this also doesn't mean that God will not honor his promises to natural Israel as well.
Paul makes it abundantly clear in the New Testament that the Church is Israel. He flat out says it explicitly.
However, Paul also says pretty clearly that the Jews will be brought back and the whole nation (at least those that remain after the final persecution) will be saved.
However, in eschatological terms, I think the pre-mill is wrong largely because it takes old testament prophecies that were really meant to foretell the coming of Jesus Christ the first time and the establishment of the Church, and insists that they are actually prophecies of the second coming.
This misunderstanding stems from a misunderstanding of what the Church is. Ironically the pre-mill makes the same mistakes that many Jews made with these same prophecies that caused them to not recognize Jesus when he came. They were looking for a more literal fulfillment, a different kind of Kingdom. They didn't realize that the Kingdom of Heaven doesn't look like what people expect it to look like. People are still making that mistake.
So, I believe God will save Israel, but this will not happen primarily as a physical, military deliverance. It will be a spiritual deliverance, leading them to salvation in Christ. It will also come after much suffering.
Of course God will save us all in the end by destroying the antichrist and his forces when Jesus returns.
