What exactly happened to Don Elkins?

[Glow]

The nature of the role? It relied to a large extent on what Don provided. The 5D wisdom there is the background, and likely co-ordination at an invisible level, accomplished a lot of what was necessary to have a meaningful communication going at high quality.

I'm asking not to negate you line of thought, but of coruiosity; is there a confirmation in any channeling that it is Don who was the 5D wanderer?

Regardless the theory of him being the only one with wisdom is baseless. Any 6D entity would have access to all learned in 5D.