1. "Optimistic Amillennialism" is a relatively new term which I find unnecessary if any sense of words matters.
2. The various views of eschatology keep changing so that it is more than difficult to comprehend what anything means nowadays.
3. There is one major difference, unless someone or group has morphed the definitions again; the "Optimistic Amillennialists" are now more similar to Postmillenialists because they see a "christianization" of the nations and a major conversion of the Jews to Christianity.
I am of the "Historic Amillennialism" and cannot foresee changing unless God Himself appears to me and shows me in Scripture where the other "correct" view(s) are taught. This He will do on the New Earth to be sure.

From what I've read from "Optimistic Amillennialists" which they prefer to be identified as, they are similar to Pre-mils in that they view things from the outside/empirically vs. spiritually. For example, many comment how 'improved' the world is now compared to the first century. Sure, we now have cell phones and relative peace vs. roaming hordes of blood-thirsty tribes slaughtering men, women and children in their wake. However, I view things as progressively and exponentially worse than that of the first century. A man identifying himself as a woman in the first century would probably ended in sudden death. Even 100 years ago, could one imagine a woman getting married to her German Shepherd or in another case, a woman marrying a bridge?

Morality has all but been eradicated in the modern world. The peace and prosperity that people think is an improvement to me is nothing less than a facade; lipstick on a pig. The Church is one; Jews and Gentile believers and not two separate groups of people. And, it is growing as the Lord adds those whom He has elected unto salvation among all the nation of the world. The victory was won on Calvary and it's fulfillment is continuous until Christ returns. Okay..... I'm done!
