How exactly is Cubase integration supposed to work in a way that keeps both Cubase and Dorico as seperately marketable products, and doesn’t piss off the users? Should Cubase just inherit full Dorico functionality, and keep its price the same, making Dorico redundant? Yeah, it doesn’t surprise me that Cubase users would want that.
But ultimately, doesn’t Steinberg have a product line conflict-crisis coming up between Dorico and Cubase anyway given the amount of DAW-like features Dorico has now? Better not actually make Dorico that good, guys, or else nobody will want to buy Cubase anymore! So as I see it, there’s a conflict of interest between both programs’ development. I would love to see a statement from Steinberg on that, by the way.
Personally, I think the only real long-term solution to keeping both products alive is to not develop crossover features. (But I personally would like to see Dorico bridge the gap entirely as the ultimate winner) – and at this point it’s too late because Steinberg has already opened that Pandora’s box, the crossover features are here, and now there’s a clear redundancy crisis to resolve at some point. Add too many Cubase/Daw features, Cubase users go ‘what gives’ and vice-versa.
Think about how insulted Cubase users would be if they added another tab to Dorico’s workflow, a mode that for all intents and purposes – was basically cubase, perhaps without a digital audio recorder. Would Dorico users be any less rightly insulted if Cubase inherited the same thing (i.e. notation features, the entire CORE of what Dorico is) … ? Why should Steinberg put themselves in such a position?
How much of Cubase’s codebase should exist in Dorico and vice-versa? Do we get a discount on each program based on that code crossover, as well?
If Dorico is to be the game changer it wants to be, this crisis will have to be resolved and Cubase may well become entirely obsolete pending Dorico actually reaching gamechanger status. You can’t have both, guys, and to me being a game changer means making the DAW as we know it obsolete, the same way DAWs made old fashioned midi sequencers and multitrack recording hardware a thing of the past! Otherwise we’re asking for Dorico to be pioneering, but not to pioneer ‘too hard’ … 
disclaimer: I only bought Dorico this year despite having followed its development from the very first posts of the Making Notes blog, because and ONLY because they added all the DAW-like features last year, allowing me to use FAR less of my preferred DAW than normal. I don’t see a strong appeal to Dorico over any competitors without the continued expansion and development of DAW-like feaures. And if I saw such development cease to make progress, I might not consider upgrading in the future.
