It seems everyone ends up at war with them except England (who's at war with everyone also... but never seems to lose). Kind of good for me though, because I'm playing Brandenburg in my current game, and Burgundy managed to force-annex most of Holland, Munster and Oldenburg. I beat up on them, then took Munster, Oldenburg, and Geldre in the peace settlement. After vassalizing Saxony afterwards (and already having force-vassalized Pommern), I'm in a good position.
The problem is that the Teutonic Order annexed Prussia, and is getting pounded on by Poland and Lithuania, so they'll probably end up with Prussia and Memmel.
I'll have to go to war with Poland in order to become the true Prussia. Danzig would be a nice addition too.
Guess I'd better start buying troops. 