Does this imply that Jesus's final glory won't happen for generations or does it imply that humankind will continue on past the final glory?
Jesus in His final glory . . .
If we look to scripture to know what Jesus final glory is, we find that Peter in an address by Peter to Christian communities located in five provinces of Asia Minor, makes reference to "the glory to be revealed" (1 Peter 5:1)
Because of translation difficulties, it is hard to say whether Peter was referring to something already taking place in his time, or something that was about to happen. The Revised Standard Version of the Bible neatly deals with that by calling it a salvation ready to be revealed in the last time, by which Peter is likely referring to Christ's final glory at the end of time.
But it becomes a paradox, because in one sense the "end" has already come (Christ by his Resurrection has triumphed over evil), and yet we still await the "end" (the time when every knee will bow and every tongue confess that Jesus Christ is Lord).
So, Our Lady is saying that there will be future generations of mankind who, as Peter says, must be those who will witness Christ's final glory.
However, Mary's message does not specify when that final glory will come, but as Peter tells us we will be here to see it whenever it is. Whether mankind in his present form
continues past that event is open to conjecture.