I believe the "multigenerational" designation is new for 2014, so none of those trips have happened yet. The
ABD website mentions that a professional photographer will travel with the group and create a personalized digital package, which sounds nice. Of the four ABDs I've taken so far, there has been one or more multigenerational family on 3 of them, so that's not uncommon anyway. The only trip where we didn't have more than 2 generations was a trip where we had a very small group (16).