So all materials will be Octane constructs in the end. Original Poser materials basically still replaced with Octane effects, as always. No change there, then.
Some Poser users will be fine with it. Others will gripe, I'm sure.
While "better" is always subjective, "change" is very rarely unwelcome in my experience with Poser; a fact most poignant in the core development over the years, no doubt there. I, for one, do like the Octane materials "better" than Poser's, but no one can argue that Poser has its own look and own approach to getting to that look.
People tied to the SSS styling and setup within the Poser materials room for Firefly rendering, for example, might certainly be reluctant to adopt a new workflow to get to something "close" to what they're used to; and perhaps never even achieving it in the end. But hopefully they'll come around.
I wonder, however, if some of them might never convert for the simple fact that their original scenes are not rendered "faithfully" enough to what they've come to expect from the world of Poser output?
Not that any of this is the concern of OR/Otoy or its assigns; just suggesting that - as many Poser users are simply looking for a speed increase, and not a quality "increase" - some may find a "different" render to be an "undesirable" render.
Either way, I, myself, am looking forward simply to the speed boost using parallel GPU processing. Long time coming.
Animations, for example, will now be a different animal.