By my reckoning it is plausible that some alive today could be among the ones who will be alive at the start of Christ's reign - see Enoch 91 http://www.sacred-texts.com/bib/boe/boe097.htm , the tenth week is the last 700 years of the seven thousand years that started with Adam being made. The judgement of the living (by Christ) starts in the ninth week. The final judgment of dead and living by God starts not at the end of the tenth week (7000 AM) but in its seventh part (compare Enoch was born in the seventh part of the first week and his birth works out from other scripture to be around 650 AM) so that could be 6950 AM approximately. So from other scripture we get the time of judgment by Christ being a thousand years (which fits with starting in the ninth week) so it might start around 5950 AM which could be just decades or even less away. It also says in Revelation Satan will start a war at the end of the thousand year reign of Christ so that could mean it ends around 6940 AM and starts with the return of Christ a thousand years before that so around 5940 AM. So it is all the more plausible that people alive today could live to see it and those who believe and are alive to see would be caught up with Christ in the air and so never actually die.
