My 954rr has almost 32,000 miles on it. Does anyone have a guess on the longevity of this engine?
i run full synthetic oil in it, and im not to rough on it. Im just looking for an average.
I love my bike, i would love to keep her forever, but its all i have to ride.

Change the oil and filter, Good fuel, wash and wax, and keep the rubber on the road. Most will go to 100,000 or mor if maintenance is kept up.

100,000 is not impossible but keep up on maint. schedule soon (at 40k) is around when they call for bearings, don't forget steering head too.  Look I have a 28 y/o bike only 26k miles but it still knows were the rev. limiter is (11.5k). 

Sweet lookin ride...enjoy

I had one that i was not so gentle on. Street riding ,track days and drag racing . It had 38k when I sold it. Great bike. You have a long way to go without worrying about it. I know of a guy here on Cape Cod that put 89 k on a 929rr with only normal servicing.