Of the eight games Chelsea have played so far this season, the reality is that Chelsea have only won three, drawn two and lost three. What's more, Chelsea only won against mediocre teams like Luton, Fulham and Burnley and got draws against Liverpool and Bournemouth. With a record like that, I can't consider about Chelsea to return to good form this moment. Because anyway, it looks like Chelsea still can't provide good resistance when playing against a team that is in its best form at this moment like Arsenal. Although yes, at least in the odds factor it also seems like Arsenal are not fully favored, but anyway I personally will not doubt Arsenal to win in this match against Chelsea.
With the existing facts, it is difficult to say that Chelsea can get full points in the match against Arsenal even though they are playing at home. The Blues will need a lot of luck to do so, and hoping Arsenal play poorly is not a good idea. However, despite this, I think Chelsea can still provide interesting resistance in the match, and they will not make it easier for Arsenal to get the three points. On paper, Arsenal is worthy of being superior, it looks like Arteta will use the same formation when they won in the previous match.
On the other hand, even though Pochettino now finds his players almost fully available, he has not been able to find the best formula for his squad. Pochettino is still in the experimenting stage with his main squad, and I think that is where the weakness of their squad lies this season. Anything could still happen, who knows, Arsenal who are highly favored, will suffer a defeat against Chelsea, like in the previous case of Man City, we certainly didn't expect it.