Since Archduke has talked me into contributing a bit to this and named me as person in charge of Bavaria, here is the thread to discuss the country that will be the biggest force in the HRE. Basically, the changes rely on one big what if: The Treaty of Pavia has never been signed, and thus the Wittelsbach holdings have remained in one hand. The Palatine and Dutch branches of the Wittelsbach dynasty are not separate, i.e. Bavaria owns the territories of the County of Holland (Holland, Zeeland and Artois) and of the Palatinate (Pfalz and Mainz).
Also, since Bavaria is strong and united, it managed to prevail in the dispute for two important inheritances. They secured Tyrol against the Hapsburgs (historically it turned out the other way round) and kept Brandenburg after the extinction of the Ascanian Margraves, against opposition from the Luxemburg dynasty and the remaining Ascanians (for this very reasons, the Hohenzollern also never moved to Brandenburg and instead consolidated their power in Franconia, but we can get to that later
). Bavaria also has kept the Imperial dignity after the passing of Emperor Ludwig.
The monarchs can basically stay the same, since Bavaria would still be ruled by Wittelsbachs, and there a no interregna or major dynastic changes in its history that would not have happened in the alternate history of Aberration. I am working on leaders and events. Basically I plan to let Bavaria become the leader of the counterreformation, and let them get some of the Austrian leaders like Wallenstein, Pappenheim and Daun (Prince Eugen will afaik be a leader for Savoy while Frundsberg, who was from Swabia, should imo still serve Hapsburg Swabia).
Also, since Bavaria is strong and united, it managed to prevail in the dispute for two important inheritances. They secured Tyrol against the Hapsburgs (historically it turned out the other way round) and kept Brandenburg after the extinction of the Ascanian Margraves, against opposition from the Luxemburg dynasty and the remaining Ascanians (for this very reasons, the Hohenzollern also never moved to Brandenburg and instead consolidated their power in Franconia, but we can get to that later
The monarchs can basically stay the same, since Bavaria would still be ruled by Wittelsbachs, and there a no interregna or major dynastic changes in its history that would not have happened in the alternate history of Aberration. I am working on leaders and events. Basically I plan to let Bavaria become the leader of the counterreformation, and let them get some of the Austrian leaders like Wallenstein, Pappenheim and Daun (Prince Eugen will afaik be a leader for Savoy while Frundsberg, who was from Swabia, should imo still serve Hapsburg Swabia).