Todd Dennis
By focusing on historical realities (first century Jerusalem, Israel and Mosaic Law) as the focal point of prophetic intent, the passing of those things creates a completely different mode (dispensation) of God's operation with the entire world. In the case of full preterism, it is generally treated as axiom that beyond AD70, in the historical "new covenant age," or "new heavens and earth," there is a new administration between God and the world at large... as opposed to simply a greater level of revelation of that which has always been the reality. This is why so many verses of the Bible are dismissed as being "before AD70," such as "thy kingdom come, thy will be done" and "it is appointed unto men once to die, and after that the judgment," or more disastrously "Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour."
There are predictable consequences of viewing scripture solely in its "historical context," considering it as only to Jews under the "old covenant age" and the "old heavens and earth" -- and not to anyone "today." (many will say "the scriptures were not written TO us, but they are FOR us.. to which I disagree, considering that the author is not truly the historical man who put words to paper, but is the eternal Logos Spirit, speaking to His offspring - "See Original Writers' Intent Not Final Authority on Meaning"). This distinction between the written words and the Living Word reveals the bigger picture, in that we can either approach the study according to our man-centered level of comprehension, attempting to box in redemptive history with our futile systems of explanation (letter killeth), or we can recognize that what is at play is something completely transcendent and timeless (spirit giveth life).
http://www.preteristarchive.com/Preterist/Idealism/dennis-todd_06-03.html