Arsenal's focus should mainly be on how to make It to the Champions League next season. Although, they are presently at the 6th place, which means they have to secure more points in order to slide up on the standings. However, I was expecting Arsenal to probably sign a good striker as an replacement after loaning out Aubameyang to Barcelona at least to strengthen their squad. But unfortunately the transfer window closed without them signing in any new striker. And this might affect their performance.
Yes, Arsenal still has a chance to get a ticket to the Champions League next season, but it won't be easy because there are 3 big teams that also have the potential to occupy 4th place (Chelsea, Man United, and Tottenham). Arsenal started the season badly, even at that time Mikel Arteta was already rumored to be sacked. Fortunately, Arsenal can overcome their slump. They are now on the right track, so Arsenal just needs to play consistently and hope that no player gets injured.