I think its gunna be hard to create something that hasn't already been done.
A problem with the miniature/wargaming community is also the constant problem that, people often ask for something new, but that something new for some reason or another never gets bought. People just stick to what they know, its difficult to kick of a new trend.
However here is my input, regardless of what the physical aspect of the Dwarves are; why not some 'savage' Dwarves, there are plenty of armoured, steampunkish, gun wielding dwarves, or viking dwarves, even Ottoman dwarves, so why not some dwarves that are sorta like cavemen?
Just an idea mind.