Freiburg losing its EL spot after their defeat against Leverkusen, they will play Conference League instead.
No, that is not the case. The reason is that Freiburg and Leipzig are already qualified via the DFB Cup. Since both have an international place, place 7 in the table is automatically qualified for the Conference League Playoffs. This means that Köln will play in the playoffs for the Conference League.
If Frankfurt even wins the final of the Europa League they are qualified for the group stage of the Champions League. That means, 8 german teams would play internationally next season!