It looks just like the GSX1400.
Yes, the liter bikes are getting quicker, however, do remember that they are already at their limits. The new 1000 won't yeild well at all to boring, the walls are thin enough as is. The 1300 on the other hand, as is, with ECU modification, can run at speeds up to 16K RPM, and it yeilds very well to boring, higher compression and boost.
But, if you just want to talk about 'showroom stock', yes the 1300 is already outdated and will probably remain with little changes for another few years. It is also a different market than the liter class, and does not have any rigid competition or high-profile races to win.