The events in 70 AD may be seen as a type of the ultimate fulfilment in the future Tribulation. This is because some, but not all elements of the prophecy were fulfilled in the 1st century but clearly not all (Jesus’ return, false prophets, greatest tribulation ever).
Unfortunately, it is this aspect of prophecy (dual fulfilment) that confuses some and causes Preterist to find some basis for their claims of 1st-century fulfilments.
So it is true that the Olivet discourse (Matt 24 / Luke 21) was partially fulfilled in AD 70 with the destruction of the Temple and the ceasing of sacrifice. But the Temple is going to be rebuilt and sacrifices resumed. It is at this point in the future that the total fulfilment of Jesus’ prophecies will take place, along with the Abomination of Desolation.