Poland has given up Courland and some eastern territories (similar to First Partition lines)
Thank you for the map! It seems like you desided to pick exactly the red line from the map I have provided. The blue line would probably be Russian first demands, but overall too ambitious.
So Russia takes Courland, Polish Livonia, Polotsk, Vitebsk and Mstislavl voivodeships and part of Minsk voivodeship on the left bank of Dnieper.
The big question is whether Saxony, in the long run, can fulfill a role similar to Prussia
My money is on Hanover fulfilling that role.
Come on, guys, why are you all discounting Prussia (we should probably call it Brandenburg now)? Sure, it suffered a severe blow, but it’s not like it has suddenly lost all importance and turned into Reuss or Waldeck. While it is not a Great Power anymore, it is still the primary power in HRE. Yes, now it is much closer to Bavaria and Saxony than to Austria, but I would argue it is still the strongest state in HRE (other than Austria that is).
Obviously, Brandenburg lost almost a half of its population, but it still has more than 2 million people (probably around 2.1-2.2 millions). IOTL in 1806 the territories that Brandenburg retained ITTL had 2.7 million people (
source; since it is a detailed description one can account for Brandenburg in TTL borders). In 1740 the population of Prussia was 2.4 millions, that included East Prussia, but did not include East Frisia that Brandenburg retains by peace treaty (of course in also does not include Silesia). Cottbus and Polish corridor that Saxony took as well as Usedom and Wolin that Sweden took are important strategically, but do not have a substantial population (less than 100 thousand all combined).
Besides, reclaiming old territory is still a big win for Austria, and Prussia is still diminished relative to its pre-Frederician borders by cessions to Russia, Saxony, and Sweden.
So yes, Brandenburg is weaker, than it was in 1740, but just barely (loosing Silesia hurts a lot, but then again 1740-Prussia did not have Silesia; loosing East Prussia is important more in a sense that without it Brandenburg would probably not be able to expand much in the East). Also note that judging by the war description in the last update, the territories that Brandenburg retained were relatively untouched by war (compared to Saxony, Bohemia and Silesia). And of course Brandenburg has a very effective civil administration, an extremely strong army and the ability to punch above its weight (that IOTL Brandenburg-Prussia proved time after time again for centuries after the times of Great Elector).
The only states inside HRE that we can compared to Brandenburg are Saxony and Bavaria.
Saxony has now roughly the same population as Brandenburg, but the main territory of the Electorate is completely devastated by war(as
@Carp argued in post #2162). Also as
@formion mentioned it was badly mismanaged IOTL and continuously punched below its weight. While this might change ITTL, it would probably just normalize the situation and not elevate Saxony to Brandenburg-Prussia level of management.
Bavaria had 3.5 millions in 1816 (source: Zahlen nach Angelow,
Deutscher Bund, S. 117.) but that is after the Electorate of Bavaria was doubled in size after the Napoleonic Wars (in return Bavaria has lost Berg, Julich and some other territories in the Rheinland, but as of 1760 those are controlled by Palatinate that was a separate state IOTL until the war of Bavarian Succession) and that also includes Bavarian Palatinate (that is again not controlled by the Bavaria in 1760). Thus around 1760 the Electorate of Bavaria probably has around 1.5-1.8 millions of people and not as effective army and administration compared to Brandenburg-Prussia.
One can argue that while Brandenburg is now technically in the same league as Saxony and Bavaria, it is stronger than both and thus it is still the strongest power in HRE after Austria.
Hannover for comparison has less than 1 million people (it had 1.3 millions in 1816 - same source - and that is including amter Aurich and Osnabruck and bishopric of Hildesheim that Hannover received after the Congress of Vienna). While the personal union with Great Britain almost guaranties that Hannover would not be completely obliterated, I doubt the Parliament would spend any substantial money on Hannover's expansion
Now let us look where Brandenburg can expand ITTL.
The east avenue of expansion is blocked for Brandenburg or at least became much more complicated. My take is that Brandenburg would concentrate on expansion in North-Western Germany and, if right opportunity arises, may try to reduce Saxony. Ironically Austria might take much less issue with TTL Brandenburg expansion than it did IOTL with Prussian one: while IOTL Prussia was since mid-XVIII century a clear challenger for Austrian dominance in HRE (and additionally these bastards took Silesia, how dare them!), ITTL Brandenburg “was shown its place”, gave back Silesia and does not have a special status of kingdom (Saxony may now look more threatening: not only it is a kingdom now, it is also in a personal union with PLC; while in practice it doesn’t do much to make Saxony stronger, it does appear scarier than the newly reduced Brandenburg).
The first possible target for such an expansion is Swedish Pomerania: if Peter III tries to enforce his claims on Sweden, he given his OTL-prussophilia might ally Brandenburg (which is anyway very useful in order to reach Swedish German holdings and later Schleswig-Holstein by land). If everything happens in this way, Brandenburg can be rewarded with Swedish Pomerania after the war.
Next interesting situation would appear if Britain and France are indeed headed to a quick rematch. As
@Carp wrote Austria would probably be allied to France. Brandenburg in such a scenario can either jump on the continental ship and try to annex some parts of Hannover. Or, if Russia is British ally, Brandenburg may join them (if Saxony is allied to France, it could be crushed by Russia and Brandenburg from both directions, if it is allied to Britain or neutral, Brandenburg is rather secure from Austria).
Lastly if Bavarian succession crisis happens as per OTL, Brandenburg again either ally Saxony and try to grab some Rheinish territories of Palatinate or attack Saxony and grab some part of it.
While last two scenarios are probably too far down the road and too speculative, it shows that Brandenburg has some very interesting options.
To sum up: yes Brandenburg has suffered a severe blow and would probably not attempt to fight France, Austria, Russia and Saxony in the same time on its own anytime soon. It is still, however, a primary German power, arguably stronger than any German state other than Austria. Of course now Brandenburg has a lot less resources than Prussia had IOTL and probably it would not survive another crushing defeat as a major power.
But Brandenburg may well bounce back and become the hegemon of Germany or at least of Northern Germany (the last one looks more plausible but the first one is not impossible). Obviously it is up to
@Carp what he wants to do with Germany but I personally would welcome a scenario with Northern Germany ruled from Berlin, Austria having larger German-speaking holdings and possibly one or several smaller German states between them and in South-Western Germany