Hey Graham,
It was and is something that we are working on. I haven't heard about a Global Family Reunion for 2016, but AJ is working on a Book as a part of the research he did, and we, WikiTree volunteers, helped him with.
The link to AJ will stay because as AJ does speaking engagements now, and later to promote the book, we will have people coming to our site to discover their connection to him.
It was and is a great project and as Brett states, It was and is great fun. WikiTree is all about connecting us all to our great big ole shared tree so this is just another way to help do that!
Mags