If Arsenal is given the opportunity and defeats Manchester City, they will most likely claim the league title. However, it will be very difficult to defeat Manchester City at the Etihad Stadium, but anything can happen in the game, and Arsenal may be lucky and win the match as they did in the first leg. Guadiola will be very preferable for Arsenal on the 30th after the international break, because they still have the opportunity to win the Premier League title this time and make it back to back.
It's going to be a big celebration for Arsenal to win Manchester City but it's likely not, maybe it would have happen if it were in Emirate because of th home advantage but it's the same advantage that Arsenal are going to have in their home that Manchester City are going to use to win them in that match. I know football can happen but I'm just confidence in Manchester City to secure this point especially now that Liverpool has given them opportunity to after losing their second goal of the season.
But if Arsenal loses to Manchester City, Liverpool will win the league, and I know only Klopp can outperform Guadiola in the league, and Manchester City still has challenging games to play in the league, so it will be extremely difficult for Manchester City to win all of their remaining matches. In my opinion, Saka is not hurt; it's simply that they don't want to risk him in the England deliberate break. I'll say Arteta made a good choice, because without Saka, I don't think they'll be able to fight Guadiola at the Etihad.
If Arsenal should win that match, then we hope they win because that's not the end of the journey yet, we have seen how Big teams play against each other and either one lose or they draw and then later lose to a small team. Whah they should do after winning this match is to make sure that they win the rest of the match otherwise winning Manchester City and losing to other teams is as good as losing to Manchester City because they will win the rest of theit matches for sure.