It's terrible.. watch Aliens and then watch 3. The CG Aliens look awful aswell. It was becuse Aliens was a different class to other sci-fi films at the time and then with such high expectations for 3, it just completely failed.
No chance, don't get your hopes up for any new tech from any of them, obviously excluding Nintendo. I'm pretty sure we won't see any new hardware. Don't get me wrong though i would love to see something, but i'm doubtful.