The thing is IOS apps are optimized for touchscreen gestures and usage on a smartphone. Having them on a bigger non touch device would mean they won't work the same way and some re-design i.e. added code would be needed. Microsoft has all the trouble in the world getting their unique UWP apps out and up to speed and the ones they do fairly lack behind in functionality and power compared to 32bit ones.
Personally I really don't need much, heck I don't even want/need an event, just update the MBP with a black version, better specs and for the love of god a 4k display and the ability to expand RAM/swap the ssd. I don't know why so many people want a redesign, I always liked the MBP design a lot to me only the early Vaios looked better but their batterylife is a disaster.
The biggest "fear" for me is if I'm deciding to buy this over the new xps 13 having to learn a completely new OS and that it might take me a longtime in doing so. Most people are saying I can't do the things I'm doing on Windows on the Macos so yeah. interesting times