This has been my hope as well. I have been severely disappointed with my Cintiq 24" HD ever since I nearly threw my back out unboxing it. The footprint is enormous, the cable clutter is irksome, and the parallax is omnipresent, no matter how many times I "calibrate" it. I have used the Galaxy Note 10.1 2014 with the S-Pen (too small and not enough software support) and the Surface Pro 3 (runs Clip Studio and Photoshop fine, but too heavy and... Windows... ugh). In both cases, there was real potential to muscle in on Wacom's market share, but both fell short on the full reach of their workflow capabilities.
I fully expect the iPad Pro not to answer these long-standing quibbles either, but form factor-wise, it has to be the best step in that direction I've seen yet. Who knows... if AstroPad can deliver decent display mirroring with low latency on this bad boy (even tethered), I'll happily throw my Cintiq on eBay.