Among this two leagues you made mention of the possibility of arsenal to top EPL is very slim because if you look at the EPL table you will notice the point difference between Liverpool and arsenal is some how high and Liverpool on the other after losing to Plymouth at the FA cup will put all there efforts in making sure that they win the premier league title.
Saka returns may not really make much of a difference because the match between mancity and arsenal is an evidence the club did very well even without him playing. So there prayer should be for Liverpool to lose to Everton so that they can close up in points with them, if not I doubt if this season and the previous will Make any difference for arsenal.
It will certainly be much more difficult for Arsenal to catch up on Liverpool's points even though Saka will return to strengthen the team after recovering from his injury. Now the gap is six points from Liverpool and there is still one game left to be played so that the difference in points between the two will be even further. Facing Everton in week 24, it is very unlikely that Liverpool will lose because so far Everton's performance has been much worse and there may be no change in the standings this week because of the much easier match for Liverpool.
Liverpool are currently very comfortable at the top of the standings so indeed Arsenal are very difficult in pursuing their position, with a difference of 6 points and also one postponed match has been a big significant advantage for them especially the competition they face is actually not too difficult, Arsenal indeed continues try to pressure Liverpool at the top of the standings but their poor consistency so far has been the main problem that makes it difficult for them to Being able to do so, often losing points from weak teams and also a bad mentality in a match has made them seem as if they are only the custodians of the trophy every season, before the trophy is won by another team at the end of the season and it will happen again this season.