Workspace Switching with gnome in ubuntu 17.10
For workspace switcher, you have Workspace Indicator extension https://extensions.gnome.org/extension/21/workspace-indicator/.
For the cube animation, sorry I don't find any, but at least you can use Workspace Grid extension: https://extensions.gnome.org/extension/484/workspace-grid.
For the CCSM, unfortunately, we cannot use it anymore in GNOME.