The graphs are based on 3 Dimensional system.The videos will be more realistic.Some new units will be used and some older units will not be in Starcraft2.The sounds will be more futural.You can feel the science fictional universe more than in Starcraft Original.There will be more detail than in Starcraft original by the technological video development.For instance you can see the reflection of your units image in well designed water.(in sees)You will witness unique fighting abilities at your units.Like reapers which can jump to a cliff or your Colossuses can easily climb the cliffs that the other units can not do this easily.These abiilities will create very different variations of new tactics.