Al-Qaeda will most definitely not dissolve due to losing one man, who might as well just have been a spokesman to the outside world, a marionette so to speak.
Anyways, their morale might have been damped, however I have yet to see whether that did any good, since an act of aggression rarely ends a 10 year old feud.
As always, just my thoughts.
@ Alla, because I don't know how to quote in the middle of posts:
I find it funny that I asked Molly that exact death question about 6 hours ago.