I doubt that Arsenal can win this round, indeed both teams still have the same chance, but in the next match Arsenal will face Munich away, of course this will make Arsenal feel pressured and I'm not sure that even if Arsenal uses all their strength, Munich will also do the same thing, let alone competing at home will make Munich more confident to win.
Bayern are unstable this season and they lost to outsiders both home and away, so with Arsenal the result could be anything in the return game, playing at the home stadium will not give Bayern significant bonuses. Let's say it will be difficult for Arsenal to win (this is 100%) but they can dry out the game (like in the game with City) and then there is a high probability that we will see extra time and a penalty shootout.
Who knows if Bayern's performance instability will drive them to the UCL title this season like what chelsea did in the past, none can't accurately predict this. Bayern's draw against Arsenal at Emirates Stadium in the last match will have significant impact to the second leg, the home game clearly provides a significant advantage for bayern munich as the supports from the fans will be obviously boosting the mentality owned by the players. despite the fact that the aggregate score would be zero and it gives bigger chance for bayern to beat arsenal away and it's kinda different when arsenal was starting the game by leading the aggregate.
Bayern Munich should have learned a lot from what Porto did. Tuchel must stop making the same mistakes, and this is a key factor in Bayern Munich's win over Arsenal. The away game obviously put more pressure on the arsenal and bayern must have played even better. I think tuchel was clearly aware about the weakness spot of arsenal.
Arsenal have rarely performed well against Bayern away and im standing on this to pick bayern win or btts, and this may continue in the upcoming match since club must have also defended its superiority against arsenal. BTTS is likely going to happen here, but I believe Bayern will win the upcoming game. Simply because it has a poor domestic record and can be generalized if Bayern fail to beat Arsenal.
This is Arteta's test to pass Bayern Munich. It's time to maintain Bayern Munich's good record against Arsenal at the Allianz Arena. Betting on BTTS or total over still makes sense here.