Adding ragdoll physics sounds good! That is, as long as the ragdoll effects don't overdo it like Tomb Raider Underworld- sliding all over the place like the floor is made of ice!
Personally, I would prefer the falling deaths (where Abe crunches into the ground and doesn't bounce) remain animations. It really gave the impression Abe was physically weak, just skin and bone, which added to the feeling of vulnerability in my opinion.
I don't think this has been asked before- in terms of the new camera, how far will Abe be from the screen? Will Abe be roughly the same size on screen as in the original? I only ask because I remember someone saying that we will see the sligs go back to sleep once we're out of range. Going by the screen distance of the original, wouldn't this mean that sligs can't see Abe/give up chasing him when he's only 10 (ish) meters away?
I suppose with a dynamic scrolling camera, it could automatically pan slightly at set points to see round a curved path, or zoom out when passing a nice open piece of scenery (to introduce Paramonia, for example- kind of how Ratchet and Clank levels begin with the camera way out to show off the planet
)