Earlier quoted context omitted.
Nope. Apple would need to do a pretty decent amount of work on iOS to support desktop like behavior. I'm not sure if there's much sales incentive either. Which is a shame because Apple got where it is by pushing the best possible user experiences. Not blind sales maximization.
Surely getting iOS apps working on macOS (Marzipan) is laying some of this ground, they are having to adapt iOS UI widgets for it, what would it take to feed this back to iOS?
Apple's superior UX team and control over app distribution makes them much more likely to succeed than when MS tried to go down a similar road. Even their long-term investment in LLVM helps here. One can only hope us consumers don't end up with a more locked down macOS as a result.