Let me say this about revivals, because some judge the "realness" of a "revival" by how long it lasts or the number of "converts" (conversions, or people "saved")...
As Jesus was having his revival (so-to-speak) He was producing converts by the thousands... Multitudes were attending his impromptu meetings. And yet how many were there at the end of some of his harder messages? At one point only his 12 remained and he asked them "Will ye also go away?". And when he went to the cross, How many stood with him? And just before the day of Pentecost, How many believers were left from Jesus' multi-city revival tour of only a few weeks prior? Acts 1:15 tells us... "And in those days Peter stood up in the midst of the disciples, and said, (
the number of names together were about an hundred and twenty,)"
So basically that idea of "How long it lasts tells us if it was real or not" is nonsense.
Nor does the idea of "reformation (cleaning up, or aligning) of the established churches" have merit as a judgement of "real" revival... because even though Jesus did all that he did, did the priesthood and overall collection of Jewish churches change their ways and accept him? Nope. So I recommend NOT holding your breath expecting the established churches to embrace what God ACTUALLY does in preparation of Jesus' return.
And this last part won't make me popular at parties either (shout out to
@Aaron56 ). But if you're part of the popular, established church-hood of today, you might want to consider how strongly you trust their teachings over learning how to hear from God for yourself. Because there is a 'revival' coming... (God always sends a spirit of Elijah to restore willing hearts before sending Christ to do the gathering, choosing, and cutting off). But God didn't send it through the established churches then... and I doubt he'll send it through the established churches now.
Love in Jesus,
Kelby