I believe Arsenal will go far and do well in the Champions League next season, despite the fact that they let me down and lost my trust in them by handing the Premier League title to Manchester City last season. They've demonstrated great commitment and proved expertise in the league, and I anticipate them to do the same in the Champions League with the young brilliant players they currently have in their team.
Arsenal were at the top of the English Premier League towards the end of the season but they failed to maintain their consistency towards the end. They failed to win the Premier League title last season as they lost a few late matches. In this case, the main problem of injuries in their team was that they got a regular eleven at the beginning and if that regular eleven got at the end of the season, the English Premier League title would have been in Arsenal's house last season. Arsenal will definitely want to start afresh next season. Arsenal did not do well in the Champions League last season so expectations are high from them this season. If there are no injury problems throughout the season and if they can maintain their consistency then this team will do well in the Champions League next season.
Whether there are injury problems or not Arsenal is expected to perform excellently well in next season's Champions League and as well as English Premier League Injury is part of the team and every good coach should at least plan for injury. It is an unforeseen circumstance that happened to every team.
Among the English Premier League clubs that went for the Champions League. I am very confident that Manchester City and Manchester United with Arsenal will do very well. But I am not sure of Newcastle because it is their first appearance for almost two decades.