I think that the reasonable high-end of what Italy may ask in the peace treaty is to place the new border from the southern tip of Savoy down a mostly straight line to roughly halfway between Marseilles and Toulon, so the answer is yes. Of course, if Italy is getting so much, Germany ought to get all of Alsace and Lorraine, including Verdun, and place the new border on the Maas.
The first part is already done, the second will get looked into
I was wondering what became of your timeline. It just ended abruptly.
I realize this. I will try to write more as the summer comes around.