Oh, okay! I wasn't aware of the Palestinian movement. I would question the motive of such a distinct rebellion, but fine.
I myself have no idea what happened with Hungary. I checked several preexisting maps, and none included Slovakia as part of the Slavic Union. Yet Aaron's map showed that Slovakia had been partitioned, so really I just kept The Nexerus' version.
As for Prussia, I didn't change anything from the original version of the map, except adding Burgenland. Honestly I would've added more land if left to myself, but since the border's been ambiguously placed there since the beginning, I preferred not to modify anything.
EDIT: The situation changes all the time, I colored it according to what I recollected, but since my recollections date from 1977, it's quite unsurprising some states are wrong. Brazil, for example, I believe is leaning more and more socialist, but as of a few years ago it wasn't.
Edited version of the map (with Palestine):