As things stands now both to me are safe for the champions league football next season, because first none of them is looking to drop from the top 5 as they are points gap of 8 points between them. Also the fifth placed team will automatically qualify for the champions league football next season base on the new format of 36 teams coming. One of the remaining spots was awarded to the Bundesliga mainly because of the progress of Bayern Munich and Dortmund to the semis of the Champions league, and Bayer Leverkusen to the semis of the Europa league.
Regardless of this both team will want a fourth place finish or a win over the rivals to keep their ego