Arkenbon: There will be a regenerating health system (similar to Call of Duty series). :(
I'm not overly concerned about the regenerating health. I'm more annoyed by the fact that it will apparently automatically switch to third-person perspective in certain situations, such as when taking cover or using certain biomods, "so that you can see your character doing something cool."
That kind of thing is typically jarring - it puts me in mind of the last Turok game, where stabbing a raptor with your knife or climbing a ladder would briefly rip you out of your character's head. DX1 and 2 (as well as some other first-person games, like NOLF) switched to third-person during dialogue and extended cut scenes, but physical gameplay was always first-person, so it wasn't bothersome.
There's also a biomod called Multikill, which I gather plays a brief third-person cutscene in which you kill multiple enemies at the same time in some unspecified manner - sort of like the "smart bombs" in space shooters that wipe the screen. Another lets you punch holes in walls, which would actually be kinda cool (DX3 takes place during the era of mechanical biomods of which Gunther and Ana Navarre were relics), except that if I'm not mistaken, the ONLY thing you can do with it is grab enemies that are standing on the other side and pull them through (why would you need to do that?). I'd bet that one plays out in third person, as well.
Not to get hung up on the details (which I may be a bit off-target about, anyway, as it's been a while since I read up on DX3), but I have to question the thought process that goes into creating such nebulous powerups. Why couldn't they have implemented "multi-kill" as a neurosensory stimulant that still leaves you in full control (bullet time - Fear did this too) and bring DX1/2's augmented strength into a more destructible environment? Those would be cool biomods. Multi-kill and... uh, wall-grab are just silly ideas.
I'm still going to give the game a fair chance - I still found DX2 to be an okay game, after all - but I've heard more details that I don't like than details that I do like.