The main goal of the big clubs is their league title and the Champions League. But this season is a little different. Many big clubs are now performing in Europe leagues. But still the main sign of every team is its own league title. Barcelona and Arsenal will be looking to secure their league title. And then they will want to win the Europa League title. But as a common spectator we would definitely like to enjoy a competitive league.
It is certain that this season's European League will run very competitively because there are many big teams in the Europa League this season after several of them failed to perform better in the Champions League. And for Arsenal and Barcelona I see that both of them still have to fight harder to get their own league title, as well as the Europa League title which will look fierce after the Qatar world cup.
Let's wait for unusual performances in the Europa League this season from those on the list of clubs participating in the Europa League. For some clubs they have to play a play off match first, and for some others they have been waiting for their next opponent in the knockout phase. Clubs that are now seeded are also seeded in domestic leagues such as Arsenal and Barcelona. I agree they will put their domestic league first and after that they will put the Europa League. No wonder because many see that the Europa League is not more prestigious than their respective leagues.