Yesterday, Elizabeth, Sr. Manager, Interactive Marketing, 2K Games,
posted some great news on the 2K Games official forums regarding the PC version of
BioShock 2. Apparently, development on the patch for BioShock 2 for the PC as well as development for the two add-ons (Protector Trials and Minerva's Den) has resumed. All three were shelved earlier due to technical and timing issues, but after listening to user feedback, 2K has decided to finish and release all three to the PC gaming community. For full details on what the challenges were that lead to development being shelved initially,
check out the post, it is worth the read.