Central Blitzkrieg

During the day of November 11, during the last year of WWI, 1918, the Kaiser Wilhelm II decided to surrender to the Entente Powers after the collapse of Austria-Hungary and the Ottoman Empire, however, what caused the signing of the surrender of the Central Powers and the signing of the Treaty of Versailles?

The main problem is that the Kingdom of Italy wanted the italian-speaking land of Austria-Hungary, however Austeia-Hungary didn't accept which manipulated Italy to join the Entente, creating another front on World War I.

However, in this scenario, the Austro-Hungarian Empire is not dumb to refuse Italian demands and instead return the italian-speaking lands to Italy so they join the Central Powers, which would lead on a Central Victory on August 26, 1917.