That's some wild speculation there and I think I will go completely against it because arsenal don't have the tenacity to actually win the champions league yet although they have a great team and also playing pattern the winning power isn't just there and besides they were paired against their arch nemesis that always get the worse out of them which is Bayern Munich so they should first think of a way to eliminate Bayern Munich first before setting hopes for dreaming about securing the trophy.
You're still among those set of people that's underestimating the performance of Arsenal this season. It's been quite a boring road for this particular club but they're aiming to compete with flying solid strategy, not giving up because there's more to accomplish this season. This is one of the major reason why Mikel Arteta is doing a great job to ensured everything works perfectly for them this season but winning the UCL title, it's going to be a rough run for them but nothing is impossible to happen and nothing is also possible to be triggered.