1) Take the latest Macbook Pro
2) Remove the Touchbar, add back F row buttons and ports.
3) Replace the LCD with a 4K OLED display with thin bezels
It is that easy.
1. Remove the touchbar
2. Bring back magsafe
3. Bring back the old keyboard
You're right about the screen bezels but I think it being a touchscreen is more important than OLED. That's basically standard on other laptops now.
Dark theme + OLED would be glorious for coding and battery life.
A touchscreen could also be a step toward being able to run iOS apps on Macs. I wouldn't claim this last piece is easy, but it could be a huge win if done right.
Apple should should make iPhones and Macs work so seamlessly together that they feel like different hardware extensions of the same device. Say, starting an application like FaceTime on one device and shifting it to the other without breaking the session. (Maybe they can do this already? If not, they should.) Again, not easy, but Apple has the resources to pull it off, and if they nail the execution they could boost the value of both product lines.
Also, greater memory options in their higher end Macs. Obviously most people don't need 64 gigs of RAM on their laptops, but for those who do, Apple should be working hard to make a Mac their first choice.
For lower end Macs, include a dongle with USB 3.0, Ethernet and 3.5mm audio jacks in the base package. It wouldn't cost that much to produce and it would give people peace of mind that their old peripherals will still work out of the box.
EDIT: Oh, and fix the keyboard. They need to set a standard for keyboard quality and typing comfort and accommodate that standard. If it means making their laptops a few millimeters thicker then so be it.
For the record, I hate the Touchbar, but I still see no suitable option in place of Mac. Linux on the desktop is still not there and Windows is atrocious (I use it for my gaming PC, but that's it).
1) Take the latest iPhone XS
2) Give it a better camera
3) Make it iPhone-SE sized, get rid of the huge display crop
4) Include 5G support
(and there is a large percentage of the population that prefers larger screen phones).
I'm sorry, but I don't think that image is as crisp and clear as what a modern iPhone, Android, or any other modern smartphone produces in a similarly lit situation.
All small sensor-ed cameras, give up when lights get dim. Even some 35mm cameras have a hard time in low light situations. This problem is barely being solved with some of the computational photography that the Pixel does. Why? Physics of light collection on tiny image sensors.