Not really for me. Being thinner and lighter is great and all but the SP2 really isn't all that heavy or thick. I also don't mind the Type Cover 2 at all, or the trackpad. 10.6" is also just the perfect size for me. I feel that 12" is just too big to a be a great tablet as well as a laptop.
The only real improvements I see are the flexible kickstand, which looks really useful for drawing, and the improving cooling and battery life. Other than that, doesn't really seem all too revolutionary to consider an upgrade. Maybe in a year or so.
I also much prefer the black of the SP2.