from this match schedule, it can be seen that Arsenal failed to win the EPL title and on the one hand, in terms of performance, the Arsenal players are not ready to accept a lot of pressure like this.
but I have to praise Arteta current achievement in being at the top of the standings and being able to qualify for the quarter finals, even though it's only temporary, it's a pretty good achievement.
Arsenal's schedule looks really tough indeed. Arsenal are going to play away against all of the opponents you mentioned at the same time. This is adding like an extra difficulty into their work. There is an Aston Villa game at Emirates as well in the meantime which could be considered as a challenging game by the way. They beat Arsenal home before.
At the end of the day I wouldn't be very surprised if Arsenal don't make it to the league title once again. Arteta is really doing his best though with the squad he has in his hands. I would really like to see him managing a team with a much stronger squad in the future.