I believe Tony sees the issue at hand. There are two ages which Preterists believe are pre-70ad and post 70ad. Believing the age to come consisted of the post 70ad period results in ALL being included in the age of eternal life.
Tony Warren Article: This Generation Shall Not Pass, TillAll These Things be Fulfilled.
This is the exact same Greek word [aion], meaning world/age. If that present time Jesus spoke in was before 70 AD when they received manifold more, and the age to come was eternal life for them, then obviously 70 AD being the coming next age (according to their theory), must have been the age of eternal life Jesus spoke of. That is blatantly unbiblical. Did life everlasting start in 70 AD? No, not at all, it started at the cross, and is consummated at the end of the world. So their theory is bankrupt and void of any scriptural basis. Jesus is obviously speaking not about an alleged coming age in 70 AD, but about the end of the world/age when He would return and "all" would be fulfilled. That is the world/age to come, when we would receive the everlasting life.
The fact is, Preterist doctrine is confused on many fronts, because there was never any Biblical foundation for making such a prophecy of a new age in 70 AD in the first place. Biblical Theology must be established on biblical foundations, not on inconsistent and contradictory theories. Of necessity these theologians would have to place another age between the cross and the end of the world for this theory to be true. In effect, splitting the New Testament period into diverse ages. One before 70 AD established by Christ's cross, and another age after 70 AD, because their position on 70 AD is untenable without it. However, it is also unbiblical with it!
Number one, While some make the claim that the end of the age was in 70 AD, there is not one single scripture that supports such a conclusion, and many scriptures that preclude it. There was instituted a new dispensation (age) when Christ died, was resurrected, and sent His holy Spirit that the Church witness with power. But there was no new dispensation or age instituted in 70 AD.
http://www.mountainretreatorg.net/faq/generation.shtml
