No one can successfully say the history of Manchester City by not involving Pep Guardiola at the center of the history. Pep Guardiola has done more than enough for Manchester City, and I do think that he made some kind of mistake in my opinion. Having one day English Premier League back to back to back and I already won the Champions League with Manchester City, it was so obvious that Guardiola needed to step aside when the ovation was still high. It was not actually necessary that he should stay longer in the club, no matter their love for the club there will be a time that people will discover your tactics. It would have been better he left Manchester City, and maybe Manchester City goes for another coach who cannot keep the standard and later he'll be recalled today club. Things might not go the way of Pep this time around.
Manchester City won 8 Premier League titles and 6 titles come from Pep Guardiola era in their club. He has massive contributions for the club and has a very important part in the club Hall of Fame, no doubt about Pep Guardiola's position in Manchester City in the present and in history.
They just got some very bad matches but it's too early to predict that they will fall down more, which I really doubt to happen. They are strong and can recover from the crisis and they might lose Premier League title to Liverpool but a position in top four can be enough for Pep Guardiola to maintain his coach position. I think a worst position for Manchester City in this season can be 2nd or 3rd, not lower.
Their main focus will continue to be Champions League as Pep Guardiola knows that his player generation he built for Manchester City 7 years ago, is coming to downside of their career, and this season can be a last chance for them to win one more Champions League title together.