Arsenal have not yet secured anything for themselves, just like Aston Villa, and it is too early to say that Arsenal has more chances than Aston Villa, besides, Tottenham is quite good this season, so for these three the whole fight is ahead. Arsenal is prone to not very good series, they can lose several matches in a row against not the strongest teams, if they repeat this again before the end of the season, they may even be left without the Champions League zone.
Actually, the top 5 teams still have a chance to secure themselves in the UCL zone because they have a narrow point difference, only the teams are able to maintain their consistency otherwise they will lose that place. Arsenal sometimes appear impressive but sometimes also appear less impressive and are still prone to losing when facing average teams so that if Arsenal is not able to be consistent then they will lose their place in the UCL. The same thing also happens to Aston Villa and Tottenham Hotspur who are still not very impressive at all. the match they are facing. Meanwhile, Man City and Liverpool are still quite impressive and are still on the winning track.