Washington Post says analysis of the wikileaks documents show al Qaeda fighters marginal to war in Afghanistan. Given the other fronts spparently opened up, this may not be surprising. Or was al Qaeda a mirage? Or again, have US efforts to choke off financing by killing the financiers been effective?
The latter is unlikely. Money for operations, training, recruitment all seems to be available on all fronts. The ideas associated with al Qaeda have expanded, but there is no evidence of a powerful headquarters and command structure, just of links between various groups. After all, al Qaeda was just that when it first appeared; an agreement to work together.