All the big majors around the world will have to adjust their (and subsidiarys) basic models (eg frequency/bases/equipment size and number etc). Just look at United at the moment their 'adjustment' is to reduce their fleet by 25% which is 100 aircraft leaving 1000 pilots on furlough.
At the current fuel prices company models which did work 1 year ago will not work now, if companies want to survive they will have to take drastic action as long as fuel prices remain sky high ( $140 dollars a barrel and climbing at last count).