The alternate future timeline was an alternate timeline that was shown to Captain Typhuss James Kira by Chloe McCarthy in order to convince Typhuss to win the war against the Xindi-Suliban Alliance. In this unfolding of events in the next 16 years the United Federation of Planets went to war against the Klingon Empire in the 25th century. The population of the planet Earth was almost completely wiped out by a Klingon attack in 2403. The Federation won the war but the Federation Starfleet was destroyed by the Klingons and the Federation became the United Bajoran Federation of Planets. However, the vision of the events convinced Typhuss to win the war against the Xindi-Suliban Alliance, and the world shown to him never came to be.
- The United Federation of Planets went to war with the Klingon Empire, from 2400 to 2403.
- The United Federation of Planets became the United Bajoran Federation of Planets after the war with the Klingon Empire.
- Earth was bombarded from orbit by Klingon warships destroying all inhabited areas and the planet's ecosphere.
- The Old City Sanctuary is in ruins after the Klingons attack Earth.
- Kira Nerys dies in 2404 when a Klingon Bird of Prey destroyed her shuttlecraft. Typhuss first marries Samantha Carter, then Helen Magnus and then Elizabeth Weir and then remarries Helen Magnus in 2409.
- Typhuss James Halliwell and Helen Magnus become lovers, and have a daughter they name Ashley.
- Typhuss James Halliwell and Elizabeth Weir become lovers, and have a daughter they name Sarah.
- The Sanctuary Network is destroyed.
- Ashley Magnus dies at the age of 23 in 2430.
- After the death of Ashley, Helen Magnus and Typhuss James Magnus go into hiding at the Underground Sanctuary.