You must have missed the Nethinim "new light" other sheep brothers being trained at Bethel to take over when all the anointed die and are taken to heaven.
*** w97 5/15 p. 20 Theocratic Administration in the Christian Era ***
In keeping with his administration of things, Jehovah is progressively moving "to gather all things together again in the Christ." As far as "the things in the heavens" are concerned, his purpose approaches completion. The uniting of Jesus with all the 144,000 in heaven for "the marriage of the Lamb" is near. Hence, more and more longtime, mature brothers of the other sheep, representing "the things on the earth," have had delegated to them weightier responsibilities in support of their anointed brothers.
*** w96 7/1 p. 21 The Triumph of True Worship Draws Near ***
Also, the great crowd of foreigners cherish God’s great undeserved kindness in granting them an earthly hope of everlasting life in Paradise. Some of these foreigners, like the Nethinim of old, have been given privileges of oversight in assisting the holy priesthood. (Isaiah 61:5) From among these Jesus appoints "princes in all the earth."—Psalm 45:16.
*** w95 5/15 p. 23 Flashes of Light—Great and Small (Part 2) ***
The Watchtower of April 15, 1992, announced that selected brothers mainly of the "other sheep" were being assigned to assist the Governing Body committees, corresponding to the Nethinim of Ezra’s day.—John 10:16; Ezra 2:58.
*** w95 7/1 p. 22 Dwellers Together in a Restored "Land" ***
Moreover, with the great crowd increasing by the hundreds of thousands each year, there is an ever-growing need for oversight. At one time this was handled exclusively by anointed Christians. Now, oversight of most congregations, as well as circuits, districts, and branches, has of necessity been entrusted to the other sheep. In 1992 a few of these were given the privilege of attending meetings of committees of the Governing Body and serving as nonvoting helpers. Still, the other sheep remain loyal to their anointed fellow Christians and feel privileged to support them as Jehovah’s faithful and discreet slave.—Matthew 25:34-40.
*** w92 4/15 pp. 16-17 Jehovah’s Provision, the "Given Ones" ***
20 All the non-Israelites who returned from exile in ancient Babylon parallel the other sheep who now serve with the remnant of spiritual Israel. What, though, of the fact that the Bible singles out the Nethinim and the sons of the servants of Solomon? In the pattern the Nethinim and the sons of the servants of Solomon were given privileges beyond those of other non-Israelite returnees. This could well foreshadow that God today has extended privileges and added duties to some mature and willing other sheep.
21 The Nethinim’s added privileges were linked directly to spiritual activities. The sons of the servants of Solomon evidently received administrative responsibilities. Similarly today, Jehovah has blessed his people with "gifts in men" to care for their needs. (Ephesians 4:8, 11, 12) Included in this provision are many hundreds of mature, experienced brothers who share in ‘shepherding the flocks,’ serving as circuit and district overseers and on Branch Committees at the Watch Tower Society’s 98 branches. (Isaiah 61:5) At the world headquarters of the Society, under the direction of "the faithful steward" and its Governing Body, capable men receive training to help in preparing spiritual food supplies. (Luke 12:42) Other longtime dedicated volunteers have been trained to operate Bethel homes and factories and to oversee programs worldwide in constructing new branch facilities and halls for Christian worship. They have excelled in serving as close helpers of the anointed remnant, who constitute part of the royal priesthood.—Compare 1 Corinthians 4:17; 14:40; 1 Peter 2:9.
22 In ancient times, priests and Levites continued to serve among the Jews. (John 1:19) Today, however, the remnant of spiritual Israel on earth must go on decreasing. (Contrast John 3:30.) Finally, after the demise of Babylon the Great, all 144,000 ‘sealed ones’ will be in heaven for the marriage of the Lamb. (Revelation 7:1-3; 19:1-8) But now the other sheep must go on increasing. The fact that some of them, comparable to the Nethinim and the sons of the servants of Solomon, are now being assigned weighty responsibilities under the oversight of the anointed remnant does not cause them to be presumptuous or feel self-important. (Romans 12:3) This gives us confidence that as God’s people "come out of the great tribulation," there will be experienced men—"princes"—prepared to take the lead among the other sheep.—Revelation 7:14; Isaiah 32:1; compare Acts 6:2-7.