Hi there, the T-Shirt will be a brand new design for Khaos Sphere - featuring artwork from the new game, this is currently being worked on.
The basic cart version will be the cartridge packaged in a full colour cardboard sleeve. The deluxe version will be the full experience. Full colour box, complete with manual and 'feelies' which have not been announced at this time. Let me know if you want to know anything else!