Arsenal will not win the Champions League next season because they have strong clubs in the competition, and Arteta will not be able to challenge them so easily. They are strong in the Premier League, and they need to focus on their problem because they are not getting any opportunities in the Champions League. I am confident that if they join them with any strong club, they will be knocked out in the round of 16. if they join them with any strong club.
Let's see if Arteta will improve his coaching quality next season and help the club achieve their goals, because it's been a long time since Arsenal won a big title, and they haven't had a chance to win a title in the competition the following season. Is it Aston Villa's fault that Arsenal didn't win the Premier League last season? They should have won the league title. because am sure they won't try and lose any point in they get the hope and win Aston Villa. But all is Arteta fault, in need to improve in time of substitution in the pitch he need to get the talent of setting better lineup for hurt match, let see how the competition will be if Arteta can challenge the big club in the UCL next time.
I don't know why you just concluded that Arsenal can't win the Champions League next season. I can also say Arsenal can win the Champions League next season. But if we were to mention the five teams that are favorites to win next season’s Champions League, I believe that Arsenal will be included in the list with their current performance. Arsenal is not a weak team that we can just conclude now that they can't achieve such a trophy. With the way Arsenal is beating their opponents currently, it is very possible they could fight for the Champions League next season.
As the domestic league and Champions League have not started, we can't easily predict Arsenal's performance in the Champions League next season. The truth behind football is that anything can happen. How many of us thought that Dortmund would reach the final last season? The reason when Chelsea won their last Champions League, how many people thought Chelsea could win the Champions League that season? Chelsea's performance was not that great like Real Madrid, Manchester City, Bayern Munich, and Barcelona that season. I am not saying that Arsenal will be the winner of next season’s Champions League, but the truth is Arsenal is among the favorite teams to win it next season.