Germany manager Joachim Low said his team was ready to "accept it" if they were relegated from the top tier of the Nations League on Friday.
The Germans, bottom of Nations League Group 1 in League A with one point from three games, could be relegated as early as Friday if Netherlands, on three points, beat leaders France, who have seven.
"It is not going to be the end of the world," Low said. "We will just have to play in a lower group in 2020. We can always win promotion again.
"If we are relegated we will have to accept it. Then we just play in a lower group. Our concentration next year will be on Euro 2020 qualification."
The Germany manager also confirmed that in-form Germany winger Reus will not play in Thursday's international friendly against Russia due to a foot injury and is doubtful for their Nations League match against Netherlands next week.
The Borussia Dortmund winger is having a sensational season for the unbeaten Bundesliga leaders, scoring eight goals and setting up another four in their 11 matches so far.
But Low said Reus had picked up a minor foot injury in Dortmund's 3-2 victory over Bayern Munich on Saturday.
"Marco Reus will not be able to play tomorrow," Low told reporters on Wednesday. "He arrived with a foot injury from the game against Bayern.
"He will not train tonight and we will have to see if it works for Monday."
The Germans are looking to finish the year on a positive note after a disastrous World Cup that ended in the group stage and a losing inaugural Nations League campaign.
Low said a process of renewing the team was ongoing but it could not happen overnight or without some experienced players.
"Building a new team is not something that happens out of nothing. It is a process," Low told reporters. "The rebuilding phase has started and the process is ongoing."
Low dropped experienced central defender and 2014 World Cup winner Jerome Boateng for the matches, but said it was important for young players to have experienced teammates who can guide them.
"Every successful team will have a good mix between young and more experienced players," he said, when asked about out-of-form Thomas Mueller, another World Cup winner, who was part of the squad.
"Young players need some players to guide them in difficult moments. We do not have too many players who have this experience."