I also hope that Arsenal will win against City, but judging rationally, the probability of this is not so great - look at the previous games between these clubs. I’m not a fan of going by history, but Arsenal actually have a terrible record against City, except for the last meeting, it’s almost zero wins and almost all losses. I will be happy if Arsenal at least draws. This will at least leave City behind, and Liverpool will presumably be able to increase their advantage over both clubs. Yes, the personal meeting is very important, but there is a more or less serious distance ahead, so the rest of the games will decide everything.
That's the least Arsenal can do is look for a draw, not a win at Etihad Stadium. Manchester City will surely find their way to win against Arsenal not a draw because that will bring them down the table for Liverpool to top them with close to 4 points.
After Manchester City's match with the Arsenal team, the rest of Manchester City's matches will be easy take on for them to win because they will be done having tough matches for the season.