The Note-series is and always has been about creation and productivity. Good luck trying to replicate that on a Nexus device. Many people here bought the N10.1-14 for consumption which really undersells its value, uniqueness, and potential. To each their own.
The N10.1-14, Pro's, and S' all use the same h/w and with the exception of M-UX being omitted on the N10.1-14 similar s/w. The S' will most likely get 5.0 first. It wouldn't be hard to port the code to the Pro's and N10.1-14 shortly thereafter. With 4.4 having been rolled out months ago for the N10.1-14 and N10.1-12 it's hard to believe some regions are still on 4.3. But it's hard to believe the almost two-year old N10.1-12 got 4.4 at all. So who knows what any specific device will get or when. My personal guess is that the N10.1-14 will get 5.0 primarily because of its commonality with other device definitely getting it. Timing? Who know. Time will tell.
I had a Nexus 7 for a while and loved it, if it had had an spen it would have been perfect.