Zoroastrianism
According to Zoroastrian philosophy, redacted in the Zand-i Vohuman Yasht, "at the end of thy tenth hundredth winter the sun is more unseen and more spotted; the year, month, and day are shorter; and the earth is more barren; and the crop will not yield the seed; and men become more deceitful and more given to vile practices. They have no gratitude.
Honorable wealth will all proceed to those of perverted faith and a dark cloud makes the whole sky night and it will rain more noxious creatures than winter."
Saoshyant, the Man of Peace, battles the forces of evil. The events of the final renovation are described in the Bundahishn (30.1ff): In the final battle with evil, the yazatas Airyaman and Atar will "melt the metal in the hills and mountains, and it will be upon the earth like a river" (Bundahishn 34.18), but the righteous (ashavan) will not be harmed.
Eventually, Ahura Mazda will triumph, and his agent Saoshyant will resurrect the dead, whose bodies will be restored to eternal perfection, and whose souls will be cleansed and reunited with God. Time will then end, and truth/righteousness (asha) and immortality will thereafter be everlasting.
Read more about this topic: Messianism