2 years ago I test rode a new KTM 1290 SA. Which at the time was state of the art for Dually's and in fact trumped even the latest sport bikes for gizmo overload. I got back on my Bike afterwards and if I am being honest the only thing about the KTM I really couldn't live without was the brakes, which I have since remedied.
I have perhaps a very different view of what I would like to see in a new Hayabusa than many of those waiting to see whats next. The new GSX1000F is honestly, pretty close to the mark. The one thing I really want in a new bike is an intelligent cruise control. And none yet exist. My car has one and I can set it at 90MPH and regardless of what I or the car in front of me does, it will simply follow the car at a distance determined by a selector on the wheel. That would be cool! As far as the performance factor goes the current liter bikes are making far more power than my Busa ever did. But that is not the sole reason I bought a Hayabusa.
Years ago I made a list of things I wanted a bike to do. All of which was based on my then current ride (1985 GS1150ES). I wanted a fast, comfortable mile eater that not everyone had! My personal wish list then was not much different than it is now. I wanted Power, Brakes, Suspension, Comfort, aftermarket support, ease of Maintenance etc. At the time it boiled down to the Hayabusa or a Ducati ST4S. The maintenance factor killed the Ducati, though I still kind of want one as neither Suzuki or Ducati have since made a dedicated Hard core Sport-tourer. But I digress. The reason I was looking at those 2 bikes was I had made a list of what was really important to me personally, and I have yet to be disappointed in my Hayabusa except for the brakes as mentioned earlier. Molding a bike, or really any hobby object of your choosing is not for everyone. There will always be those who want a turn key, end all, be all solution. I am not one of those people. YMMV.
P.S. I am on my second cocktail of this St. Patty's day so...