On the point of HDR, i disagree. Who said HDR had to be perfectly realistic? Isn't it also perfectly reasonable for the stars to instead take advantage of HDR and give them a nice bump on the brightness scale? That way you'd be able to see then provided you weren't looking at the sun, which you already have a SCREENGOWHITE effect for anyway. In fact, HDR would make it easier to see the stars when you should be seeing the stars. A la, when your not staring into the engine glow of something. Tone mapping goes both directions.
I have to whole-heartedly agree. It would be even better than now, since HDR makes it possible to have true changing light ambience - ergo when looking at smg. bright you won't see that well in dark areas, but that's alright....neither do you in life. When looking at something dark, you will see earlier "soft" ligthsources as a lot brighter. Which is alright too.
What the system tries to compensate is your monitor's inadequacy at rednering very dynamic images (with a very big difference between the brightest and darkest parts). Instead settling for a "muffled", grey middletone; you can achieve true dynamic range.
HDR isn't bloom, or enhanced or any of the other crap you see in most games!
Hell, I hadn't seen a HDR game in all these years, until I tried out Stalker on my friends rig.
It's different. Check out the Lost Coast on HL-2 to get the idea.