Thanks to Brother Longfang from Bolter and Chainsword for this.
A new expansion for Warhammer, 40,000 and this time from Forgeworld! It hasn't been released yet, and there aren't even photos up on the item page on Forgeworld, which at this point is not public.
Called "Zone Mortalis", this expansion set is comprised of four 1'x1' sections that can be put together in multiple ways. Together they form a 2' x 2' game board, same as a Realm of Battle board section. Forgeworld has incorporated ideas from Space Hulk (augur blips and bulkheads),
IA9 boarding mission rules (catastrophic damage), and Fantasy (reaction fire and blind panic). The boards have a price of 98 Euro, which is about $ 131 US.
The New release item description page is here:
http://www.forgeworld.co.uk/New_Stuff/REALM-OF-BATTLE-ZONE-MORTALIS-SET.html
You can download the rules PDF here:
http://www.forgeworld.co.uk/Downloads/Product/PDF/Z/zonemortalis.pdf
The Original Forgeworld Realm of Battle Imperial Stronghold board (2'x2')
And read the rest of the story here:
http://apocalypse40k.blogspot.com/2012/02/forgeworld-to-release-zone-mortalis-40k.html
Cheers!
Loken