I know the SS were nowhere near as powerful as they'd become in succeeding years, but I still wonder if this 'internal revolution' might buy some time for either side.

According to Total War and 'War Leaders', Mussolini had convinced the Pope to intervene and talk with the Polish President, but Hitler invaded before the meeting was to take place.

Whether the Poles would agree to return territory to avoid war or not I haven't read as much on the Free Polish historical accounts.

While the German people might have support for the return of pre-WW1 european borders, they(nor the Generals) didn't have that desire for Lebensraum, the conquering of more living space beyond original German borders. This was why Hitler kept demobilising after each victory, he knew he really didn't have as much support of the industrialists nor Germans themselves as his propaganda machine indicated.

Does anyone know of any comments by German General Staff in favour of risking war over how much returned territory?
Could the Danzig Corridor be negotiated?
Were the Generals as anxious for war at this point?

Without the Nazis in power, what would it take to make the German opposition/General Staff and/or people to feel they had regained enough?

Are there any quotes from those who'd have over-thrown Hitler on this issue?