This is an interesting topic with a lot of snippets of information. I would suggest however, that before launching predictions and conclusions we all should gather more facts. If you want a true picture of what is going on in the world you have to read all of the news, read between the lines, and then put together the big picture before drawing blanket conclusions.
Will a war hurt attendance at WDW?
Yes, one of the main points Disney made after 9/11 is how it was similar to the Gulf War in effects on the parks.
Will people continue to travel to Disney?
Yes, (supply your own personal reason here).
Will the war affect the price of fuel?
Yes, recently experts have pointed to the price per gallon rising to anywhere between $2.00 per gallon and $5.00 per gallon depending on duration of the conflict and other political situations. Even without war many experts are predicting fuel prices will reach higher this spring/summer than last. THis will put the price of gas in some locations at near $2.00 /gallon without a conflict.
Will people spend more? and is war good for the economy?
The answer is yes to both of these in the short term. Due to increased fuel prices everything the average consumer purchases will be slightly higher in price to reflect hihger transportation costs. As to the second part of the question, War has a positive effect on the economy for a short time. Then as the war machine winds down, so does the influx of this money into the economy. Typically, if my memory serves me correctly, following each major war was a recession while the economy readjusted.
To meet the demands of this unstable political and economic climate, a prudent company would already have begun implementing plans to limit exposure to the tides of the war machine. Disney, I believe is a prudent company these days.