It will be unsurprising if Arsenal does winn against Manchester city, the city team looks beatable this season and sometime losses their shape and balance. The tie is also a huge one to determine who wins the league between arsenal, liverpool and manchester city.
I think it will end in a 2-2 draw which gives liverpool a needed advantage
Actually, it won't be very surprising, because previously, Arsenal had also beaten Man City and had also beaten Liverpool in the EPL. However, the difference is, when they beat Man City, Ciy's squad was not as complete as it is now, without De Bruyne especially. So maybe for now, there has to be a bigger effort, however, it looks like Man City will still win.