And would the chieftan be the infamous don burney, who now replaces Jesus?
Your statement presupposes the nation of Israel [Jehovah's Witnesses] has not sinned.
Which would mean Jesus' words and bible prophecy, are invalid that clearly state,
"...ELIJAH is coming," and
would "RESTORE ALL THINGS"
when?
"...BEFORE the great and fear-inspiring day of Jehovah," is simply not true.
11 In reply he said: "E·li´jah, indeed, is coming and will restore all things. (Matthew 17:11)
5 "Look! I am sending to YOU people E·li´jah the prophet before the coming of the great and fear-inspiring day of Jehovah. 6 And he must turn the heart of fathers back toward sons, and the heart of sons back toward fathers; in order that I may not come and actually strike the earth with a devoting [of it] to destruction." (Malachi 4:5-6)
The bible makes clear, the nation of Israel would need the services of "Elijah" and the "Chieftain" in the last days.
The "Chieftain" and "Elijah" is one in the same person, and is a "christian" himself, according to what the bible teaches. Since he is a footstep-follower of Jesus, he is never meant to replace Jesus (as if there is something wrong with Jesus or his covenant), as he is a member of the christian covenant himself. -- Ezekiel 44:3
Since the nation of Israel [JW's] is on a wayward (apostasy) course, as evidenced by thousands and thousands of JW's flocking to discussion boards like JWD, eWatchman, Paradise Cafe, etc... proves the need of such action on the part by Jehovah and Jesus Christ in sending the last prophet Elijah, to "BRING ISRAEL BACK" to Jehovah in repentance. -- Isaiah 49:6
To fully accomplish this, Jehovah and Jesus uses the Chieftain to mediate a new covenant (called the "indefinitely lasting covenant") to bring Israel back to God in repentance, as bible prophecy reveals. For instance,
4 "In those days and at that time," is the utterance of Jehovah, "the sons of Israel, they and the sons of Judah together, will come. They will walk, weeping as they walk, and for Jehovah their God they will seek. 5 To Zion they will keep asking the way, with their faces in that direction, [saying,] 'Come and let us join ourselves to Jehovah in an indefinitely lasting covenant that will not be forgotten.' (Jeremiah 50:4-5)
35 And I will bring YOU into the wilderness of the peoples and put myself on judgment with YOU there face to face. 36 "'Just as I put myself on judgment with YOUR forefathers in the wilderness of the land of Egypt, so I shall put myself on judgment with YOU,' is the utterance of the Sovereign Lord Jehovah. 37 'And I will make YOU pass under the rod and bring YOU into the bond of the covenant. 38 And I will clean out from YOU the revolters and the transgressors against me, for out of the land of their alien residence I shall bring them forth, but onto the soil of Israel they will not come; and YOU people will have to know that I am Jehovah.' (Ezekiel 20:35-38)
59 "For this is what the Sovereign Lord Jehovah has said, 'I also must do with you just as you have done, because you despised the oath in breaking [my] covenant. 60 And I, I myself, must remember my covenant with you in the days of your youth, and I must establish for you an indefinitely lasting covenant. 61 And you will certainly remember your ways and feel humiliated when you receive your sisters, the ones older than you as well as the ones younger than you, and I shall certainly give them to you as daughters, but not owing to your covenant.' (Ezekiel 16:59-61)
These scriptures above make clear the apostate nation of Israel [JW's] would be restored back to Jehovah's favor using a new covenant arrangement, a special "indefinitely lasting covenant", in the last days. "Elijah" and/or the "Chieftain" would be used to MEDIATE this new covenantal arrangement for God's Name People. -- See Isaiah 55:3, Isaiah 61:8; Jeremiah 32:40
...hopes this helps
MB