To end the era of Kali Yuga, Demon Kali advent of Kalki Avatar is an absolute must. Only the timeline of Kalki Avatar is based on many factors. He could advent a few years from now or about a decade later. The most likelihood of his appearance is between 2022 and 2025.
To annihilate dark forces of nature, to reset the society and re-establish dharma (righteousness) advent of Kalki Avatar is ordained in scriptures.
An Avatar advents every 3500 to 5000 years! Lord Krishna advent above 3650 years before now and in recent times, mankind would witness advent of this one-man army, a one-man show. The might of this Kalki Avatar would draw a dedicated minimum following of 2000 million people worldwide. Another 1000 million would simply follow. That totals to about 50% population on mother earth. In the aftermath of world war 3, 20% population of the world would be wiped out.
Kalki Avatar would free from India, the spiritual citadel of world. Mounted with power of scriptures like Bhagavad Gita and Upanishads, the teachings of Kalki Avatar would provide a soothing balm to the ailing society in the aftermath of world war 3.
The advent of an avatar is always preceded by a battle of Mahabharata magnitude. No sooner world war three starts on mother earth, a ghastly man-made tragedy Kalki avatar would surface.
It is only the might of Kalki Avatar that in the aftermath of world war 3, mankind would usher into Satyuga, the awaited golden period.