Siemens now sponsors it.
The overall theme of the narration is different, changing from more face-to-face styles of communication to more network-like stuff, reflecting current trends. The narration is done by Dame Judi Dench.
Just as you start your picture is taken for use later.
Some scenes were simply cleaned up (like the mammoth mentioned above). Towards the end they were completely replaced. I believe after the television/moonlanding scene everything was removed, replaced with a large computer room, and a "Not Steve Jobs" scene

Rather than get into the future of communications, it stops roughly at the present.
After the Earth scene, as you start the descent, you pass through something I call the "inifinity room" - lots of lights arranged in rows off into the distance, like those 70s "infinity mirrors", but not quite as inifinite.
Then during the section where there is nothing to see, the interactive display on your vehicle asks questions, and based on your answers will produce an animation with your faces from the picture earlier showing your future.