Well it turns out the rumor is true. Newsarama has posted the DC Comics April 2006 solicitations and lists that Joe Mad will be contributing to Batman/Superman #26! I don't know if this will be a single panel, page, or multiple pages but his work will be in this issue along with quite a few other artists.
I have scanned the latest images out of Wizard #172; which were the Scarlett Witch, and Iron man sketches, but I've lost the server that was hosting the images so it will be a little while before I can post them up.
The next issue of wizard should be hitting the stands in a couple weeks or so and it claims to have a nice feature on Joe. It's going to be an interview on what he's been up to since he left the comic world so it should be a very informative read! I'll definitely update you guys with the juicy bits when Wizard #173 hits the shelves.