Sean over at Preposterous Universe sums it up nicely:
Nobody knows what Iraq will look like ten years from now, and anyone who claims to is just whistling in the dark. It might be a struggling but maturing democracy, or a repressive dictatorship, or have broken into pieces, or simply be a chaotic mess roiled by perpetual civil war. It may even be an Islamic fundamentalist theocracy, pursuing a vigorous program to develop weapons of mass destruction. That would be kind of ironic. But this is not a case where anyone should hope for the worst just so they can say "I told you so."