I think it depends on how you define World War. If it is bullets flying and people dieing somewhere in the world, then yes, there will be (already is) a WWIII, and it will never end. If you mean us against them, fighting 'til one gives up, then I would say no, not like WWI & II. If you mean the "terrorists from the desert" against the USofA, that one is gonna be going on for a long long long (I feel like Harrison Ford in Six Days Seven Nights here) long long long time. But I don't know if you could call that a World War. Confused yet? I am...