Yes but the CP giving Italy piece of France is good only if the CP wins and without the Ottoman things look not real good; plus the OP want that the war ending as OTL (very difficult), so the only thing that come in mind is to compensate the absence of a member of the CP with the absence of a member of the entente and a A-H more pressed than OTL can fold to Berlin pressure and sign a treaty with Italy.
Agreed Italy is the easiest POD. I think a neutral Italy might be enough. With Italy and the Ottomans neutral, the UK blockade might be very ineffective. Not to mention Bulgaria and Romania will import a ton of war materials to resell.
Another easy POD would be a blunder by the Entente, which I gave the easiest one with the UK being more passive and copying the Napoleonic "We pay, continental allies bleed model". If the war is going better, we might well see slower conscription, slower transition to wartime economy, or just the UK waiting until 1916 for its first offensive to be launched with 40+ UK divisions.
The Balkans have some potential if we can still get Bulgaria in the war (far from a given) and perhaps Greece is neutral. Even with Italy in the war, there is a lot of coast line in Greece, Ottoman Empire and Romania.
Or we can pick a POD where the Central powers do much better. For example, if you take one of Wiking two main TL, and add this POD to them (neutral ottomans), you might well get a war that goes deep into 1917 or 1918.
After that, I think we are down to multiple POD's that could add up to the desired result. UK is late to war by few weeks combined with Russia attacking Sweden bringing them into the war. No USW combined with much loser blockade.