I think the season opener of TMS this week was really great. I loved that MP played the opening fill of 6:00 on a tiny kit. As far as Eddie having any other members of DT on TMS, I'd say not a chance. He's stated flat out on his twitter that he's not a fan of DT. DT has never gotten any love on TMS, because, as Eddie has said on the show, he doesn't see DT as metal. To him they are just prog rock, and aside from UFO and Rush, Eddie isn't a fan of the genre.
MP was on because he's slated to be a guest later in the season to promote AMOB, a band that Eddie apparently (according to his twitter) really loves.