I also expect Manchester City to start a winning streak after the break. The loss to Arsenal was a significant loss for them, but it was a predictable one. After all, Manchester City only loses three or four games at most in a season and this was one of them. It's bad that they lost to their direct rivals, but they can make up for it by winning their other matches.
Many of us do not understand the disease that accompanies loses. If a team, let's say Team A has a match as Team B and Team C. But they have to play Team B before Team C. If Team A is able to beat Team B with upto 3 goals, Team C is technically defeated.
Why you see clubs like Manchester city always win matches is because of the fear factor people have for them. That fear will make coaches introduce foreign formations to play against the inform team and they likely lose. Since Manchester city has started lossing, don't be surprised if the Citizens surprised you once more