Christian Revolution is the wrong word, I agree. But we could have another Christian revival. We don’t KNOW that we are at the End Times. There have been many revivals throughout history, including especially the Great Awakening in America, and it could happen again, if God so wills.
It’s not something we can do by ourselves, although God uses human instruments to bring about His will.
Of course we know we’re at the end times. All of the signs point that way. Technology, signs in the earth, lawlessness, sinfulness, globalism, Jews being hated across the globe (even by people in the US), etc.