In answer to your original question, yes the staging can change as a result of the pathology reports and the outcome of the surgery. Like David I was supposed to have 3 bags of Cisplatin but I had such a severe reaction that I only had 2 treatments. I was effectively disabled for almost a year. Many times it has been said that it takes one month of recovery for each week of radiation. Speaking from personal experience I can tell you that radiation is a tough treatment - tougher than surgery (even tougher with Cisplatin). You are going to need help caregiving for a while. Use this lull to build up a network of friends and family to help out. The ACS can provide volunteer drivers for radiation. I am not trying to discourage you but you need to plan for what is to come realistically.

The good news is that I am cancer free for almost 6 years now (I was given a 38% chance of 5 year survival). Keep your eyes on the horizon and take it one day at a time.