I agree with the mathematical prediction here. The teams score quite freely, and hardly think about promotion. This is largely what the players’ actions are enabled by. So, without a second thought, I expect three goals here.
After an unimpressive result in the Champions League campaign, the visiting team will be fighting tooth and nail. Likewise, the situation in the Bundesliga does not allow the Munich side to feel at ease. Finally, last season Bayern Munich lost to Heidenheim away from home.
In Belgium, scoring a lot has always been considered prestigious. Here, all the trends point toward a high-scoring match. Yes, the away team has started to show some improvement in defense, but that says little in the context of the upcoming game.