Warpstone 30 (last one) is almost out.
A TOC and preview of one article on site - and the one are Dwarf careers.
Look nice though I would have the tunnel fighter career special ability work in any mine or other underground area not just a "cavern", as I think "cavern" would be a bit too limiting. Since WFRP is not "dungeon bashing ad nauseum" I don't think it's too generous.
I would not include "just being in a cellar".