These are small details, but I think they're the most likely:
- Work to reduce or remove camera bumps.
- We would have Mac Pro and Mac mini updates sooner.
- Add at least another USB-C port to the MacBook.
- Change and streamline Apples keyboards.
- Listen to MBP customers when redesigning.
- Keep MagSafe in some form.
- Go back to skeuomorphism in some ways.
- Streamline product lines and released
- A lot of other things I can't think of right now.