The graphics for the character models, environment, etc, are all improved, the camera system has been updated (some of which is in progress).
Improved does not equal different. Our question is why is Larian using artwork of any kind from the D:OS games at all? In interviews Larian devs themselves have said very clearly that they're aware that the game should not look like a D:OS game with a D&D skin, so why reuse ANY artwork from the D:OS games? If this is truly a separate game from the D:OS games, then ALL art assets for character models, environment, etc. should be brand new and made specifically to look like the Forgotten Realms and NOT anything like Rivellon.