Yes, Roma is still fighting for the play off round with the clubs that were relegated from the Champions League, can Roma survive like last season until they take part in the Europa League final because it seems like this season Roma is better when compared to last season even though they are both in second place in the group but Roma last season then only got 10 points with 2 defeats whereas this season they got 13 points with 1 defeat so Roma still has a chance to finish like last season if they are serious, especially in the domestic league Roma is experiencing improvement which is certain this season Roma will struggle hard to compete in European League.
Yes, Sevilla has been eliminated from the group stage and eliminated from the Europa League so this is good news for all the clubs competing there because Sevilla has been a strong rival in the Europa League for the last few seasons.
Yes, among the teams that emerged as group winners, only Leverkusen achieved perfect points, being able to beat a total of 6 matches without losing or drawing, even in the Bundesliga, Leverkusen has not experienced a defeat. I have a filling if Leverkusen might win the Europa League and Bundesliga titles, but the question is Can Xabi Alonso maintain a consistent winning record?? Of course, it's not easy because each team has different strengths when facing a match with Leverkusen, especially Liverpool, which is a threat, so Xabi Alonso must make Leverkusen maintain the club's performance and focus so that it doesn't decline.
Well only time would tell whether Roma would survive in the tournament, now that most tough means have been relegated to the Europa League, but Roma is a big club with several top players and a good manager that hungry and very eager for success therefore just like the previous season, I believe Mourinho would try his possible best to do better and probably reach the final like they did the previous season.
Leverkusen seems like the winners of the league if you're to judge from the group stage, they did pretty good and won all matches, not missing out on any point, that's a very good record they've kept for themselves and if you ask me, I think they're potential winners of the league, cause they're still one of the strongest team in the tournament, despite the fact that several tougher teams have been relegated into the UEL from the UCL tournament.