NLP becomes the Empire version of Today germans FDP liberals, While FVP is liberals wing of socialist.
That is about how I see it. I leave the FVP independent as a coalition partner to SPD, it strays on issues, economic one that its liberal middle/upper class voters prefer, but favors the liberal social agenda of the left generally. I am pondering having NLP absorbed by the Conservatives or my CDU the new "big tent" Centre-right party uniting the Christian, conservative, and middle-class, but that is somewhere out in the late 1940s to 1950s era.
My Reichstag is still multi-party dominated, the little ones sapping off strength so I am looking at various "reforms" that would be used to push votes into the bigger parties but keep proportional as I think it was the way Germany does democracy. Are you running the Chancellor as a British style PM, rooted in the elected party in power or does it look more like an executive almost Presidential office under the Emperor with "advice and consent" of Reichstag? I chose this hybrid as I think the Chancellor was never designed to be a PM as the British think of it. I also want to toy with the Bundestag as the states in Imperial Germany were not Lander, they were far more independent minded and would demand more say in things after being dragged to war by Prussia. I ponder if it looks more like the US Senate, equal votes for the States? But a narrow band of powers, including the power to declare war?
I struggle with Austria, in my mind the A-H Empire had more life to it but I think it struggles with unity, I prefer to keep it going since no one seems to take that challenge and I think pan-Germanism was not favored by the German elite, especially Prussia. To be different I think my Anschluss happens in the 1950s, here Germany struggles with a break-up in the same era as the Prague Spring.