Looks like there may be a Killzone 3 PlayStation 3 bundle arriving alongside the February 22, 2011 release of Killzone 3. A reserve listing from GameStop shows a PS3 160GB Killzone bundle for a price of $299.99. Sony Computer Entertainment America has not announced it, but keep a lookout or check with your local GameStop store for reservations.
On a Killzone 3 related note, the US PlayStation Blog has announced a delay in the Killzone 3 Multiplayer Beta, now beginning on February 3, 2011 instead of tomorrow. There is also a giveaway of a Limited Helghast Edition, which offers an exclusive Helghast helmet complete with glowing red eyes. Read the details here on the US PlayStation Blog!
Killzone 3 launches on February 22, 2011 in a regular and Helghast Edition.
UPDATE 2/15/11: The Killzone 3 PS3 bundle is available for pre-order here at Amazon.com for $299.99.