Maybe there's some way to keep the old French-Italian-Austrian alliance, but I'm not sure how and it hands Russia to the Germans. The Ottomans remain a wilde card.
The Ottomans would go with whatever side didn't have Russia in it. They had serious beef with Russia.
Leaving aside the ASBness of a French-Italian-Austrian alliance, of course. Why would Italy ally with the two countries it had significant irredentist claims on?