Expect Illustrator CC Desktop App like Photoshop CC Desktop App the 3D Workspace, sketch and drawing with 3D Layers in 3D Mode.
Lu Wei commented
I think that the 3D Workspace, sketch and drawing (in Illustrator CC Desktop App) with 3D Layers in 3D Mode is the modern 2D creative design App must-have feature today. The Photoshop CC Desktop App feature is being used by more and more designers in 2D creative design, look! https://www.youtube.com/watch?v=ZydZ72iUKDQ