I think it's not just Roma that will remain a threat in the European league, considering that there will be other strong clubs dropping out of the Champions League and that will increase the intensity of the competition, making it even more exciting. I think next season's European League will still present interesting things and maybe more than just the favorite teams, we will see the same thing as this season.
Several strong European teams that play in the UCL will also play in the UEL if they are eliminated in the group stage. As Roma are favorites to win at the moment but I don't think they are the best. But we cannot underestimate them. The European League has many interesting surprises this season and I am sure we will also see many interesting surprises next season. Seeing the performance of a team from the UCL or an underdog team that can beat a big team is something that we can only see in the European league.
You should not rush into conclusions on which club will win next seas because it is too early. I don't see Roma winning Europa next season, because I don't see them as the best. We will have surprises next season and with the recent result of the finals this past season, no club should be underestimated.
If any competition is in the semifinals stage, I don't think that any club is an underdog, because they were strong enough to win their matches to that stage if not we will not see them in the semifinals at that was the case of what played out this past season. I hope we see great surprises next season from this league.