Apologies if this line has been mentioned before but I believe it is very new:
Samsonite B-Lite V79 which claims to start at 2,2kg for the 55cm/20 inch cabin trolley non-spinner and 2,4kg for the cabin trolley spinner. (also larger pieces available) Prices at MUC start at 129 Euros and up.
The case is very pleasing from a visual and a user standpoint. It has two positions for the handle. I actually prefer it now to the Travelite and the Sub-0.