Things are starting to take shape for your playoff round, in terms of who you might face.
- You can't face Bayern, Lyons or Villareal as they are seeded (along with yourselves)
- You could face Udinese as they are confirmed as unseeded
- Of the remaining ties, one winner will be seeded:
Benfica(1st) v Trabzonspor (9th)
Kiev (2nd) v Rubin (6th)
Odense (8th) v Panathks. (3rd)
Twente (4th) v Vaslui (10th)
St. Liège (5th) v Zuerich (7th)
So if Benfica win, they become the last seeded team, and you can't play them whatever happens. But if they lose, Kiev would become the seeded team (assuming they win, and they probably wont as they're 2-0 down from the first leg, both being away goals), so most likely the seed is going to be Benfica or at an outside chance Panathinikos.
This means the other match winners will be seeded, so you could be likely to play one of :
- Rubin (2-0 up)
- Twente (2-0 up)
- winner of Liege or Zuerich (yet to play)
- winner of Odense or Panathnks. (yet to play, but if Panathinkos win you can only play them if Benfica wins and takes the last seeded place)
- Trabzonspor (if they somehow beat Benfica, which is unlikely).
- Udinese (already through but unseeded)
Of the teams above I would say Rubin would be the hardest team for Arsenal to face, then Panathinikos. Bear in mind that Rubin are already in the middle of the Russian season so are 100% up to match fitness. On the other hand Udinese, like a lot of Italian teams, might struggle with fitness issues in August (as their season starts late).