Satan. Mr. Poots stated if they reached $666,666 in their Kickstarter he'd design his version of Satan. Which happens to be two hermaphrodites. The limited edition run of 500 sold out in 8 hours, however they're taking pre-orders for general release.
Gold Smoke Knight. This is a limited release.
Pinups of Death - Hard Plastic Collection. This is a collection of their 8 previously released pin-up versions of characters in plastic rather than resin including some other goodies. At $100 for the collection they're cheaper than a GW character at about $12.50 apiece. And remember these are 35mm miniatures.
In the remastered and re-released realm there's the Twilight Knight Pin-Up which has 5 available as of this writing, White Speaker Nico in an encore release, and the resin White Speaker (non-pin up version) as a remaster. Many other figures are still in stock as well. You check it all out at the Kingdom Death store.