I admit it. those charts about Revelation leave me cold. Those, “what exactly is this?’ and “how do these fit together on a time line?” questions are unanswerable. If this was that John meant to tell us, he did not do a good job. Just pick up 3 commetators at random and read from any part of Revelation and see that they will not agree.
Is there something wrong with the Dice & Define approach. That is, where we dice up the book into its various parts and then set out to define (Is that Nero, Domitian or the Devil?) each part.
The Blessing is for Reading and Receiving this book (1:3). There is only one possible place where there is some kind of puzzle – after speaking of “666” it says, “let the reader understand.” (Rev. 13:18). Again, lots of luck with finding 3 commentators that agree on the meaning of that. I am quite sure that having a license plate with 666 or finding it in your address will not be the issue.
Better to read Revelation as a whole and receive the charge it contains: persevere, be on watch for the deception of evil, embrace the future victory, more is going on that what we see, Christ is Lord, make sure you are in “the Lambs book of life.” Evil has a repetitive quality, the bad guy might be a little of Nero and a lot of Anti Christ, but they share the same outline and methods.
Read it out loud. Repeat as necessary.