Sorry whats SOP?
Well if we look in the Bible revival is what happens when God says to dry bones make these bones live. The dead become alive. Its Lazarus awakening from his sleep. In spiritual terms its us throwing off our graveclothes, where we were once bound, now we are free.
I agree with what aiki wrote.
As for whole church revival, well one cant have it without repentence. Sometimes groups of people will fast and pray, then revival happens after that. I dont know too much about other churches talking about revival as in predicting its coming for everybody without actually repenting. Ive never seen it happen like its been reported, but then i havent been a christian that long. I have seen weird happenings in some churches eg where people get pushed over by the preacher, and i just think thats false. Well I know its false, because they actually do forcibly push you.