I thought it was pretty obvious that Newmann dies, he even says so in the end, "you won't like what you see." The only explanation for the end was that he was hallucinating, because there is no way that Nicole would be there as a necromorph, especially after the marker was replaced, and there's no way for her to be alive since she is a doctor and she'd know how much it takes for her to die.
Tag(thx fkusumot) - "Yet again I completely fail to see your point..."
HD vs Wii, PC vs HD: http://www.vgchartz.com/forum/thread.php?id=93374
Why Regenerating Health is a crap game mechanic: http://gamrconnect.vgchartz.com/post.php?id=3986420
gamrReview's broken review scores: http://gamrconnect.vgchartz.com/post.php?id=4170835