Jesus’ Failed Prophecy About His Return

[Nihilist Virus]

Some didn't.Through some of the profetic writtings of Paul it is said he was privy to the end, and the whole book of revelation is a huge testament that John saw everything there was to come at the end. remember how this book was written. as a historical account meaning he wrote down everything he saw and explained it the best way he could.

I think we should concede this point. I doubt John actually wrote Revelation, which would render your point invalid, but the lore here seems to be acceptably consistent.  Jesus could have meant that John wouldn't die until he had his vision. Again I doubt this was the intent of what was said but your model does encapsulate it.