Preterism is false. There's even so many ridiculous preterist beliefs its almost pointless to point out every heresy, it is onerous frankly. So here's what the eschatology is.
The Bible encompasses all of known time within its story/plotline, even the end of time. Lol even a brief glimpse of after time. Technically, we are indeed still living in the Bible plotline indeed, whether anyone accepts this or not they can't change it nor hide it. We are also in the later part of time to boot granted we can prove at least 4000 years have elapsed, possibly more counting in the Flood and before and all that. Perhaps this is not the final pangs of time, but its getting there indeed. Though many prophecies have indeed come to pass, many are still not so.
You can show clearly in the Bible that it is very clear that the last generation shall not pass away until all the end time signs be fulfilled.(Matthew 24:34, whole chapter is also the end time prophecy according to Jesus according to Matthew.) Very terrible times it seems by the writings. Terrible times now indeed, but it could get worse, and it will before it's over. No fear of the world factions though, be not afraid of what they fear. Hope in God that in that time those goodly remnant in those times will endure to see Jesus come and resurrect us all and that his will be done and Jesus be praised forever.