Well, in addition to the stuff above, some other stuff: repainted Gallente and Caldari ships. Nearly all of them. And the Phobos has these little gravity well generator things on it that look cool as hell. The Raven's model has actually been redone, but is still the ugly, lop-sided bastard it always was. The best part though: optimizations. Not only does the captain's quarters bit actually run well, but the whole game runs A LOT better. There is less delay between systems when jumping, and even between your hangar and space when you undock. Engine trails are also back. Space also looks very beautiful now, with the new nebulae...but it is very, VERY dark; do not expect to see your ships as bright as they used to be. The first time I undocked, I felt like Ray Charles.

As for the interface...the font has finally been changed to something readable, you can right click on a distant jump gate and select 'jump', just like a docking command, and you can also use that command with 'scoop to cargo bay'. There is a 'loot all' button now, too.
Oh, and they replaced 'warp' with 'acid trip'. It is really awesome, and when you pass through a planet, it is like going through a tunnel, just like the fluff says it should be.

Anyway...this is what I have seen in 30 minutes.