I think KDB has not played yet versus Arsenal because still recovering from injury. Even Man city are favored to win because they are playing at home but arsenal is want to continue to dominate and maintain the top of the standings. But arsenal also quite doubtful to win because on the previous match, they lose versus QPR in a trial match, even not many core players have been fielded, but I see Tomiyasu there and can't maintain the winning.
The match will be a difficult match for both, Manchester City have so far performed quite well but losing some of their main players of course the team will not be stable, losing Walker, Ederson and KDB certainly leaves a hole that will indeed be easy for Arsenal to exploit in the game later, but I think Manchester City fans do not need to worry about it because after all the replacement squad owned by Manchester City at this time is also not good inferior to their main squad.
In fact, I think Arsenal should be wary of the later game, because against QPR alone they are too easy to beat indeed Arsenal fielded their young squad in the match, but I think the presence of some of Arsenal's main players such as Tomyassu and Thomas Partey should be the difference in the match, but it turns out we actually saw how easy QPR was in scoring 4 goals without reply from Arsenal players, In addition, I also heard the news that currently Saka and Martinelli are also injured and of course that will also weaken them in the game against Manchester City later.