Well the Blu-ray set does definitely not include ALL of the deleted scenes. Maybe like half of them ? But probably less. There are so many scenes which we only know they were shot because we have like a still photo, or a confirmation by an actor, or a script excerpt with a confirmation by somebody that it indeed was filmed. Also, the deleted scenes from the prequel DVDs are not on the Blu-rays at all. And the Rinzler e-books contain more alternate / deleted scenes from the original trilogy.