Excavations in the hills and caves at Qumran continue to this day. As for the account of a second messiah, it has existed since the time of Jesus. Numerous references survive in Scripture, along with dire warnings of a false prophet walking the land. Jesus himself made some of these warnings.
Two thousand years ago in the Holy Land, identity theft was an easy matter and no doubt many such deceivers existed—some of them mad, some of them fraudsters—claiming to be the true messiah.
As for a pope who will return the church to its true and simple course, without pomp and possessions, we all await that day.
In the meantime, two things are certain. All of the Dead Sea scrolls have yet to be discovered, and all of their secrets have yet to be revealed.