An excellent TL. Personally, I am rooting for the Eastern Powers, if only because I think that would be more interesting than a Western victory. However, I do have some issues with the goals:
1. I think Naples and Hellas have more to gain from allying with the Eastern Powers, and, although they are playing cautious right now, they will likely join the EP if it starts to look like an EP victory.
2. Austria-Hungary's little piece along the coastline and giant thing in Italy are unlikely if it really wants such a giant piece of Germany. All I can see it want aside from that are Montenegro, Serbia, and the territory between them (Bosnia & Herzegovina) in the Balkans, and Venice in Italy; the other parts of Italy conquered by the Austrians would probably go to the Neapolitans, in addition, most likely, to Corsica and Sardinia.
3. Russia, on the other hand, seems to be limiting itself in the south. The weird tail to the Hellan border is unlikely, but Russia would likely annex Moldavia, all of OTL Bulgaria, Romania, East Macedonia, Thrace, European Turkey, and the entire southern coast of the Black Sea, including the city of Constantinople. This would probably be administered via a series of puppet-states (neo-Byzantium, neo-Trebizond, anyone?). In the north, Russia probably wouldn't aim for much more than the OTL Russo-Finnish border (ie, total control of Lake Ladoga). The southern front would likely be the focus.
4. The area of the Ottoman Empire not given to Austria or Russia in the Balkans would probably be partitioned between Naples and Greece (assuming, of course, that the two of them fight). Greece would also aim for Cyprus, Smyrna, and maybe some other parts of western Anatolia. They would want Constantinople, but I doubt the Russians would give it.
5. Although, again, I can see the partition of Germany, I doubt that much would happen to Scandinavia. Border adjustments with Russia and Prussia-Poland (assuming the border in Jutland becomes one with PP); maybe handing some ports over to Russia or Prussia on the Swedish east coast, but Scandinavia would survive, if only on account of there being bigger fish to fry.
6. I doubt the Easterners would mechanically stop at the French border; Alsace-Lorraine (approximately) would also be included in Prussian and Austrian gains.
7. The question of what happens to Britain is interesting; they're so far removed from the proceedings that it's difficult to see them losing land of any sort. Perhaps Central Asia and Afghanistan can be given to Russia, but I think Russia would be fighting on too many fronts -- for this to realistically occur, the Eastern Powers might have to form some sort of covert alliance with Indian nationalists, resulting in widespread sabotage of British war efforts in the area of OTL Afghanistan - could this happen?
8. Assuming Naples enters the war, could we see a North African front develop?
That said, this is an excellent TL, Glen. I just doubt a lot of those war aims.