interesting story, the german national team is doing an USA visit with two matches there after the season. But Dortmund is in the CL Final, Bayern at least in the national Cup final and Madrid still has league at that time.
So the national squad will be without Reus, Götze, Hummels, Bender, Schmelzer, Gündogan, Neuer, Schweinsteiger, Gomez, Kroos, Müller, Lahm, Boateng (maybe I forgot a Bayern player, there are so many), Özil and Khedira. Should be an interesting team ^^
--------------Adler---------------
Jung - Höwedes - Merte - Jansen
-------L. Bender - Rode---------
Herrman - Draxler - Schürrle
--------------Klose---------------
bench: Poldi, Kießling (uhm, yeah), Sam, Neustädter, Aogo, Kolasinac, Westerman, Oczipka, Ter-Stegen, M. Kruse
Maybe something like this (still pretty good, imo). Could be the debut for a bunch of people.