Germany: An earlier East/West German split, with the east going to the Kaiser and the west being a Republic. East Germany gets to keep the parts of Prussia that in OTL went to Poland. France still gets the same German territory as OTL. German Colonies all go to Britian
Poland: Gets all of the Baltic States to give them access to the sea.
Austria-Hungary: Slovakia is part of Hungary, OTL's Czech Republic goes to Austria. Serbia get's Bosnia and nothing else. Italy gets Dalmatia and Slovenia. Croatia is land locked.
The Ottomans: Greeks get Constantinople, the Anatolian Coast and Cyprus. A Zionist state is created stretching from Suez to Anatolia. Armenia and Kurdistan are both created, but with borders that piss both of them off. Turkey keeps the rest.
That should lead to some fun.