Revelation 10: 7: But in the days of the voice of the seventh angel, when he shall begin to sound, the mystery of God should be finished, as he hath declared to his servants the prophets.
When the prophet of God went off the scene in 1965, there arose many after him claiming to be special men of the hour or an eighth angel for the Bride Age etcetera. Of these men who made such fantastic claims, some of them were most certainly gifted and had the supernatural accompanying them, but still, their self-importance is not substantiated in the Bible.
In Revelation 1: 16, Jesus has seven stars (not eight) in His right hand. Those seven stars represent the seven church age messengers, and it would be the seventh messenger who would finish up the mystery of God according to Revelation 10: 7. There is no need for an eighth angel to come along with some extra special revelation if the Bible has been opened to us by tearing off the seven seals upon it.
In Genesis 24, it was Eliezer who went and got a wife for Isaac; in Ruth 2, there was only one chief reaper who spoke of Ruth to Boaz; in Malachi 4, there is only one man called to be a prophet in the last days with the spirit of Elijah upon him. These scriptures do not speak of some other man holding a unique position as successor of the one whom God had originally chosen. Abraham did have other servants, and Boaz had other reapers, but they were not the emphasis of the narrative.
In Revelation 10, the Book is firstly with the Mighty Angel, then it is with the seventh angel, and lastly it is with John. So the Book went from Christ, to the prophet, to the Bride (whom John represents). The prophet was a one-man ministry, but the Bride is a body ministry made up of many saints from all around the world. Within the Bride body is the fivefold ministry according to Ephesians 4: 11, and there are many gifted ministers who are used of God in an awesome way, but none of them are called as an exclusive special man of the hour to lead the Bride.