Well, I don't think that matters much. Whether they are playing at the Etihad Stadium doesn't really matter, especially considering the last match Arsenal had with Manchester City at City's home, which resulted in a two against five defeat that Arsenal inflicted upon Manchester City. So even though they were playing at City's home, Arsenal was able to beat them in their last fixture togetherr, as a competition.
With statistics like this and with Arsenal momentum, it is possible for them to still be able to win 3 points but Manchester City are still very favorites for now especially they will play at Etihad Stadium which incidentally is a place that is still quite haunted for several clubs and it could be that good results in the last few matches for Arsenal stopped this week.
But even so, I actually still feel that the chance of a draw is a big possibility to happen and now for a draw also has pretty good odds so I will try my luck for a draw in this match.