Last season was indeed one of the best seasons for Arsenal, how could they get up and at least manage to put pressure on Manchester City to fight for the EPL title. It was a great achievement in one season and in the end Arsenal also got a place in the champions league even though they failed to win the EPL.
Mikel Arteta certainly doesn't want to get the same results for next season and become runner up again, this time he will definitely be more serious about bringing his players for totality in every game so they can get an additional three points. Very fierce competition will occur in the next season and some of the clubs that you have mentioned above deserve to be able to compete again for the EPL title.
Every club has their season to make an impact and last season was Arsenal's opportunity, but they botched everything and missed the league title to their archrival, Manchester City. We don't know which clubs will be competitive and in form next season, but we'll keep an eye on them. Arsenal belted up and were at their best last season, their outstanding performance surprised everyone, who would have believed that Arsenal, a team full of players with mediocre experiences, would have a chance to fight for the Premier League title. Next season, is an another opportunity for them to try again.
An opportunity loss in football is not always the same opportunity to be given next season. Arsenal does miss their golden opportunity to be crowned the champions of the premier league, we don't know whether they will make it to the top again next season because we don't know which club will wow us with their competitive impressive form next season. It can be Chelsea, Liverpool, Manchester United/City or Newcastle. As far as competing for the Premier League trophy is concerned, no premier club is an exception.