If it is pancreatic cancer, you should expect systemic treatment after surgery when you are strong enough for it.

I must say, your situation seems quite unusual in that they performed surgery and now are going back to get “what was left”(?). Or maybe you were having surgery for something else and it was discovered? If so, the current data seems to show better results with chemo first, then surgery. You might ask about that. If it is definitely Pcan, pls do get a 2nd opinion.
There can be many twists and turns with this disease. You need people, like Mayo, that see high volumes of these cases.