Alexander captured at Austerlitz?

[Faeelin]

During the battle of Austerlitz, the Tsar was almost captured.

Let's suppose that during the course of the battle, he is captured.

Pressburg is still likely. However, the real question is the Tsar, and Prussia.
Constantine quickly returns to Moscow, but can he prevent a coup?

Without the Tsar, does Prussia still go to war? Anyone but Frederick William and I'd say no, but it might not be looking that good.

And what of the Ottoman Empire? Napoleon's plans to partiton it fell apart due to conflict over who would get Constantinople. The logistics are just plain awful in the area, bvut the Danube could be useful, and I think we'd all agree that for Napoleon, Constantinople would be far more attractive than Madrid.