When I look at this image, I also see a finale between Lazio and Athletic Bilbao. I'm not just saying it because of they finished the league phase as the 1st and 2nd. They really deserve it as they play an impressive football. They aren't playing like Manchester United or Tottenham no matter they finished that phase right behind the first 2 teams. Athletic Bilbao will be tested by a tough challenge first though. They drew Roma which did quite well against Porto earlier. 

About seeing a surprising team like Fenerbahçe in the finale, it isn't impossible. Especially while Mourinho is managing. He is good at carrying a team to the finale in the Europa League.    But for now I don't know whether they can beat any of Roma - Athletic Bilbao.