So I did a little research, and found that albania was ironically ruled by a German prince in 1913 but was overthrown shortly after WW1. Maybe in a CP victory, he gets restores to the throne?
Austria can annex Serbia by integrating it as a "state" of its confederation, which will probably be the case anaway.
Anyway, here's a timeline I've created to fit with the map, please comment or tell me if it needs to be changed somehow:
POD: No changes to the original Schlieffen Plan, invasion of Kluck's first army is through Limburg in Holland, and there is no "Seventh Army" in alsace, instead these troops are added to bolster the right wing
August 4, 1914: Invasion of Holland and Belgium begins, troops from von Kluck's army reach the maas river
August 6-11, 1914: Siege of Liege, ends when german forces which already crossed the maas attack the fortress from behind
August 10, 1914: Brussels falls to german forces
mid/late-August:
-Guarded by only a corp's worth of troops, german forces retreat in Alsace. An french offensive in lorraine, however, is spectacularly defeated by the German Sixth Army. The Prince of Bavaria, the acting commander, demands reinforcements to drive the french back, but the high command refuses
-The recently arrived BEF retreats inland to regroup with french forces
August 25, 1914: German forces reach the Somme river
August 27-30, 1914: On the Eastern Front, the Russian 2nd army is annihilated at Tannenburg
August 28, 1914: The French government flees to Bordeaux to escape the expected capulation of Paris
August 31, 1914: Strassburg falls to the French, the high point of french advance in the east
September 1, 1914: German forces cross the Seine west of Paris, von Bulow's and Hausen's army reaches the marne
September 5, 1914: Recrossing the Seine east of Paris, von Kluck's first army traps the BEF in a strategic encirclement, forcing its surrender, however, the french fifth army manages to pull retreat back
September 9-12: Battle of Nancy-The German 4th, 5th, and 6th armies attack the French 1st, 2nd and 3rd armies from behind. The French Second and third Armies are completely annihilated by the encirclement, while the First Army manages to escape badly mauled
September 10-13: In the Eastern Front, Russian forces are driven out of East Prussia
September 10: Verdun, surrounded and heavily bombarded, falls
September 13: Epinal falls
September 16: Belfort, the last fortress town, surrenders to german forces
September 6-18: Siege of Paris-The hastily formed 150,000 man French 6th army retreated into paris to defend the city. On the 14th, German artillery, including Big Bertha howitzers, are brought to shell the city in spite of the risk of civilian casualties (the reason why this didn't happen during the franco-prussian war). An attack commences the same day. By the 18th, Paris is captured.
Situation at the end of September: Despite the huge military defeat suffered, the French have still not surrendered. The German general staff can't help but to think that they where in a similar situation during the Franco-Prussian War. However, this time, France still has its British and Russian allies fighting for them. German forces are started to be transferred to the east to help the situation there.
Late October/Early November: With the arrival of forces from the east, a new offensive is planned to wipe out the russian army before larger forces can arrive. A dual offensive is planned, with one end in east prussia, the other in silesia facing poland, to destroy the majority of russian forces by encirclement. The offensive is a success, capturing Warsaw, and the "Battle of Vistula River" yields 80,000 Russian casualties and 300,000 prisoners at the cost of 40,000 German casualties. With the Russian front collapsing, A-H pitches in a massive offensive in the east too, forcing the russians in a headlong retreat
November: With the austrians focused on the russians, the serbian army takes advantage by launching an offensive, liberating belgrade and driving the austrian out of serbia. Meanwhile, the ottoman empire has been eyeing an alliance with German and A-H. An incident where british ships transvered turkish territory in pursuit of german ships have incited ottoman anger. And Russia is already a long-hated enemy of turkey. However, Germany asks the Ottomans to stay out of the war for the being, until an offensive to the Suez is achievable, and until serbia is cleared to make room for a berlin-baghdad railroad
Winter, 1914-5: German and Austrian forces have driven the Russians to a line streching from Riga, along the Dvina river to Dvinsk, south across Belorussia to the carpathian mountains. Tzar Nicholas has been agitated by the military disasters and has taken command of the russian army himself. However, things seem to be only worsening for russia, as turkey has closed shipments across the bosporus, effectively cutting russia's only viable source for supplies from britain. France finally surrenders in December, agreeing to the peace terms I mentioned earlier.
Feburary 1915: Bulgaria joins the central powers in exchange for receiving parts of serbian macedonia. Serbia quickly falls as austrian, german, and bulgarian troops completely overrun its territory. Meanwhile, Turkey declares war on britain and russia, and launches offensives toward the suez canal.
To be continued...