Hi,
After longer hiatus of mine with this Forum, it's good to be back!
I am one of the early adopters of the gen. 1 12.9" iPP (got it in November 2015) and I really welcome the new upgraded specs. Are there ground breaking, in any measure? Not at all. But along the scheduled iOS 11 and its many great things coming, the case of iPP being a solid replacement for laptop has never felt stronger than it is now.
I've grown accustomed to some quirks (especially iOS 9) of the original gen. 1 launch. More often than not, the keyboard firmware would fail causing issues with typing. But with every iteration of the OS it felt that Apple had invested much more into this than just an offshoot large iPad. I am really thrilled to see those massive improvements coming to the platform this autumn. All in all, this is fantastic news.
With respect to the revamped specs, I am compelled to upgrade. The TT display, as well as ProMotion, plus ridiculous amount of processing power, and the upgraded LTE connectivity are more than enough for me. I also like the fact that the storage options have been significantly updated and, as such, position the device in more competitive spot. I've just placed an order Logitech for their new fancy keyboard (backlight illumination is important to me), and should be ready to order around September; LTE 12.9" gen. 2 with 256G, methinks.
Having watched the WWDC keynote I have no doubt that the future is bright; if the final update plays out so well as they've promised, the outcome will take me to the point of selling my backup Mac (have had to use it very rarely, anyway). iOS all the way, as far as I'm concerned.
Cheers & take care.