I think, this is the third time or second time Arsenal is ended up in second position in the premier League table in the tenure of their current coach, which is a big challenge for Arsenal coach right now to take a good step to sign a good player that will handle the centre forward to make the team stronger. Gyokeres will be fit for such wing, if Arsenal coach can consider the player to join the team this season because his team is ready to release him to Arsenal if they are ready to pay the amount of funds they are willing to sell him out to Arsenal, I hope Arsenal coach make a good decision in this summer to sign in players that will make team to win this premier League title.
I think that if Arsenal do a good job this season by Being more consistent in winning then they could take the PL, if not you have to ask City how they did in the 2nd and 3rd seasons, where Arsenal were not consistent and they lost a lot, Liverpool already have it clear, they know that with a good advantage they will take the PL, I couldn't say which team could do better, but if Arsenal with the material they have they can make the difference.
Last season, Arsenal's toughest rival was Liverpool, but this season, Arsenal will have to face another tough rival and that tough rival is Manchester City. Last season, we did not see Manchester City at the top of the points table because Manchester City's performance was inconsistent last season, but next season, they will definitely want to start anew and win the English Premier League title again. In the past few seasons, we have seen Arsenal hold the second position of the Premier League strongly, but if Liverpool performs like last season and Manchester City returns to their best rhythm next season, then it will be difficult for Arsenal to hold the second position of the points table, although Arsenal will fight to ensure the top position of the points table next season.
It is impossible to predict which team will win the Premier League title, but it is expected that Manchester City, Arsenal and Liverpool will face a tough competition next season.