PSG are very motivated to secure full points, because they are outside the play-off zone. Bayern Munich are also very ambitious to get an additional three points, so they can finish in the top eight of the standings and automatically qualify for the last 16. I don't think the match will end in a draw, considering the points they want.
Yes, a draw will probably happen if Munchen can't take advantage of their chance as host. but we can't ignore if Bayern is a club in the heat of the moment. I know they were lost vs st pauli maybe due to the implementation defense of the opponent being very tight, so they were frustrated and conceded after getting a counterattack. But when meet PSG next, I think they will learn from their mistake and not repeat it. Bayern still has match on next week to implement their new strategy so if they can win it on Dortmund home, it's not impossible they can get 3 point when they hosted PSG in the next match.