Christ’s millennial reign
New heaven and New Earth: D&C 63: 20-21; Rev 21:1; Isa 65:17-25, 66:22, 2 Peter 3:10-13
"...When Jesus Christ comes again and the Millennium begins, the earth will be changed to the condition it was in prior to the Fall of Adam and Eve. Before the Fall, the earth existed in a terrestrial, or paradisiacal, state (a state of paradise). After the Millennium, the earth will change again to a celestial state prepared for the presence of God. These changes may have been what John saw taking place when he “saw a new heaven and a new earth”..." https://www.lds.org/manual/new-testament-seminary-teacher-manual/introduction-to-the-revelation-of-st-john-the-divine/lesson-160-revelation-21-22?lang=eng
Return of the City of
Millennial reign of Christ 1000 years starts.
Second Coming of the Lord: D&C 45:44,
"When the Lord returns He will make some appearances to specific groups
and then culminate His return by His appearance in great power, majesty, and
glory, in such a manner that all the world will see Him (see D&C 133:17–22
and 101:22–23). Four appearances of the Lord have had particular mention by the
prophets: two of these appearances will be to the Saints; one appearance will
be to the Jews; and the fourth will be His final coming to the world.
The Second Coming: the appearance to the whole world. As the Lord’s Second Coming approaches, signs will mark this epochal event. One of the last of these signs is the sign of the Son of Man (see D&C 88:93; JS—M ). The Prophet Joseph Smith said: “Then will appear one grand sign of the Son of Man in heaven. But what will the world do? They will say it is a planet, a comet, &c. But the Son of Man will come as the sign of the coming of the Son of Man, which will be as the light of the morning cometh out of the east.” (History of the Church, 5:337.)
Following the sign there will be “silence in heaven for the space of half an hour, and immediately after shall the curtain of heaven be unfolded” and the Lord will make His appearance (D&C 88:95). So great will be the glory and power of His coming that the earth will tremble, the sun shall hide his face in shame, the mountains will melt and flow down, and the waters of the seas will boil (see D&C 133:40–42, 49; 101:25). All that is corruptible will be consumed and destroyed by the brightness of His presence (see D&C ; 101:24–25). The Lord will wear red clothing, signifying His great atoning sacrifice and also His judgments upon the wicked (see D&C 133:48–51).
At this long-awaited day the Lord’s people will receive the reward for their faithfulness and endurance (see D&C 54:10; 133:52–53). Both the righteous living and the celestial dead will be caught up to meet the Lord in the air to be rewarded according to their deeds while the wicked are destroyed and cast into outer darkness (see D&C 88:96–97; 101:89–91). This will be the “great and dreadful day of the Lord” (D&C 110:14, 16)." :(H-10) Christ’s Appearance to Mankind, http://www.ldsces.org/inst_manuals/dc-in/dc-in-200-g-i.htm#h
Second Trump (terrestrial) D&C 88:99
End of 1,000 year period, Satan loosed for a time
Third Trump (Telestial) D&C 88:100
Fourth Trump (sons of perdition) D&C 88:102
This is an event, in my estimation, that many don't understand. It is my guess that when the veil is lifted it will become very apparent, and all of our experience will come to bare in choosing sides. Since this is a post coming event I won't spend much time on it, however I will just state this could be a section in and of itself.
Final Judgment 3 Neph 27:16
2nd New heaven and New Earth (for a second time. this being the final transfiguration to the Celestial glory): D&C 29:22-25, 77:1, 88:18; Rev 4:6