Theoretically, it could; the natural 20 can't be preempted but if the penalty imposed by Disruptive Strike causes the total roll to fall below the target defense then it becomes a non-crit and just rolls damage instead.
Which I've seen happen... once.
Ok it is after midnight... I was really hopeing the first set would be up...
Link. As of yesterday, it was still on the slate for today.WotC_GregB said:Character themes article will be up some time tomorrow (Friday). It won't be live at midnight (EST), but it is on its way!