I think that Henrik have filmed the whole Tracker process (aka The Full Circle) plus he filmed and took some shoots during the DTRW recording sessions.
If it will be released, the doc is very, very outdated. Tracker and DTRW are not The White Album or Let It Be to be revisited such a long time after their releases.
He doesn't filmed the ODR recording sessions. Unless that is a deadly secret.
However, if Henrik took some shoots during ODR sessions.... let´s wait until MK do 80.