I'd love to. What I'd say is that it's a very worthy hardware update, and it feels like something built to last for a long time still, and not a final iteration of a product that's fading out. Not that anyone ever said it was.
As for workflow improvements, that'd depend a lot on what you use the Octatrack for. Like the versatile toolbox it is, depending on what you reach for, why and when, the MKII might change things for you, or you might not notice at all. I go mostly for recorder trigs and resampling, and it's convenient with immediate resampling accessible with a push. I also use parts heavily and I found a few neat tricks there as well. I would imagine that a user that really goes for the Octatrack from all directions, there's just lots of small details, short cuts and tricks that will make it feel somewhat smoother.
The irony here is that I do believe you need to be an experienced user to appreciate these changes. I didn't see anything that made me feel that a non-Octatracker would become an Octatracker, just because of these changes. Nor do I think this is Elektron's intention. Some things just have to be done in a certain way, that's just the price of depth.
The screen and the buttons, though. Man, oh man. When you fire it up, it just glows and flashes, like the boss it is.
It's really a win win situation. If you'v got an MKI, it's as great as it ever was. If you're gunning for an MKII, it's gonna be as great and maybe greater, but not as in "Whoa, there's just shit I can do with the MKII that won't happen on the MKI, due to the vastly improved workflow". Not so. It's not like it went Volca Sample now.
The Octatrack remains an instrument that requires your time and patience, like any proper commitment. You show me an instrument worth it's salt or ivory or wood or metal or whatever that doesn't hold this statement true, and I'll sell what little gear I have left and become a farmer.
It remains a unique and amazing piece of gear, and Elektron just underlined its well-earned place in the history of hardware music gear.