In the Insight on the Scriptures Volume 2 pages 248-249 the Society says, "So with obedient mankind, when man's last enemy, death, is brought to nothing, there will be no sin working in their bodies to bring death. To time indefinite they will not need to die."
The Insight on the Scriptures vol 2, page 1102 -what time indefinite can mean, "However, the Hebrew expression 'ohlam' does not in itself mean "forever". It often refers to things that have an end, but the period of such things' existence can be said to be 'to time indefinite' because the time of their end is not then specified."
So even after the 1,000 years are over, Jehovah's Witnesses will remain mortal. They will always remain able to die if they are not obedient????