Savage Worlds is my latest RPG, and the only one that got me back to roleplaying games after many years. I'm still primarily a tabletop player, but SW has my Sundays, and has stolen my heart.
The combats play more like a tabletop game, and don't get bogged down by too many mechanics, but still have the options to really run wild. Players are allowed and encouraged to try more options than just what "feat" they would have in D&D. Character creation is much more fun with a point buy system, and the edges and hindrances let you create your vision of the character, rather than someone else's idea of what your character is.
The mechanics are stripped down, but it's an elegant simplicity, rather than barebones.
The advantage you have of putting out a Savage Worlds supplement over that of a D&D book is that you will retain ownership of your creation, and have the option to still put out your own book down the road. Also, there is no large expenditure like getting into bed with Hasbro.
Of course, this can also be done as a free pdf, with the appropriate marks indicating the Pinnacle logo and giving credit where it's due. Ultimately, the Pinnacle people sell their basic rulebook, and you promote Malifaux to a whole new audience.
You could do this with a published hardcover book like Slipstream (pulp sci-fi), Sundered Skies (dark fantasy), or 50 Fathoms (fantasy/pirates). I think this would sell for you, if the quality is on the lines of the Wyrd miniature line.
I'm not a member of Pinnacle, but I am a client!!
Pinnacle has a very basic approach, and you can find their information readily from their website. I've no doubt they would speak to you personally regarding a partnership of this sort.
I'm going to post on the Pinnacle forums to see what others in the community think of Wyrd miniatures, Malifaux, and the idea of Savage Malifaux. Their forums are similar to yours in that it's a very friendly crowd of like minded people who enjoy gaming, and want to help each other out.
Cheers,
Joshua Slater