IT may just be my sound system, but it is difficult to understand the video. How ever the theory is a good on. Things that stand out in the text, the timing of the wedding seems quite odd, Catelyns attitude towards Jon and Barbrey Dustins story to Theon in the crypts. Oddly enough, I had just started working on pulling quotes together on this theory. As a side note this goes a long way towards solving the time line issues present in the Ned+Ashara=Jon theory.
This was half of a tinfoil question asked on another venue. The other half was Jon as Brandons son also. The Barbery - Theon conversation in the crypts at Winterfell is pretty open ended as to meaning and interpretation.