What will change?
Nothing.
If the French decide to strike back, I hope their campaign is ruthless and definitive.
I listened to Hollande remarks. He is closing the border to prevent people from LEAVING. Islam fanatics will continue thier attacks.
Nothing.
The French have been a pathetic lot since the end of WW1. I think you can mark that time period as the moment the fight completely went out of them and they've never recovered as a people.
I not only expect them to do nothing, I expect them to collectively make excuses for the very people who kill them. The French are self loathing and do not believe in anything but today - which makes them selfish and lazy. They stand for nothing, and so this will only make them retreat further into their shell which will feature them agonizing if maybe they are too Islamophobic. Sure the anti immigration party will surge a bit, but that will likely fade away.
So no, I am not French today. I can barely recognize America for what it once was, but I'm certainly not going to identify with the French.