Scott Hahn sounded positive when interviewed about the effect of Dei Verbum on ecumenical relations (February AD2000). The point that seemed to impress him was the idea that the Magisterium was subordinate to the Scriptures! I do not find that Dei Verbum supports this view.
Perusing Dei Verbum, article 10, one finds that "this teaching office is not above the word of God, but serves it ...". Now, "not to be above" something does not necessarily mean to be subordinate to it. The Council Fathers did not use the word "subordinate" and their choice of expression is not without significance.
Furthermore, Dei Verbum states that "sacred Tradition, sacred Scripture and the teaching authority of the Church ... are so linked and joined together that one cannot stand without the others, and that all together and each in its own way under the action of the one Holy Spirit contribute effectively to the salvation of souls."