So, this is a plan from before the 1866 conflcit, when presumably he had decided firmly on the kleindeustchland 'solution' to the German Question?
Not having read the book, I can't say for certain, but from the information Halagaz has presented of it, not at all. "Bismarck would have preferred to keep the Habsburg empire around as a junior partner and ally; but he was more than willing to split it up in case the first option doesn't work out - before and after 1866. He maintained links with Italy, Romania, Serbia, the Hungarian and Czech revolutionaries, all directed against the Habsburgs; and he even accepted the possibility of involving Russia in the partition."
Also, to the OP this "shackled to a corpse" quote you repeatedly throw up - you know that was attributed to Ludendorff (or Hindenburg, but as it's apocryphal we'll never really know) in 1916 - after two years of war?
While that specific quote may only date from after the start of the war (most sources I can find merely mention it as something which was commonly said in Berlin and not attributed to a specific person) awareness of A-H's decline was something which predated WW1.
The German (Prussian) military thought the A-H KuK Army would more than hold their own before hostilities began - hence the disposition of forces in 1914. It's only after two years of Conrad's (mis)management that that sentiment became the prevalent one.
The German disposition of forces in 1914 was not determined by A-H, it was determined by the gap between German and Russian mobilization times which, the German high command believed, allowed enough time for a quick victory over France before transferring the bulk of its forces from west to east.