I gave sports options a call last Friday, and the lad said to me, if the German government announce a plan to lift restrictions regarding football fans attending (after Feb 15th), as late as even Feb 10/11th, they will still have enough time to organise a few flights over.
He said they sorted multiple flights for England v Sweden in Russia with a few days notice, as well as England (Rugby) over in Japan with only 5 days notice.
That said, I’m not sure I can see the Germans going from 750 to 80,000 in one go. Hope I’m wrong right enough.