After showing all the details of the new keyboard 16-inch MacBook Pro, a iFixit (repair company) finished its traditional disassembly of the computer. And, even though it has new components, its interior is very similar to that of the 15-inch model.
The MacBook Pro opening process remains the same: you remove six screws from the back cover and have access to the internal components.
After disconnecting some cables and removing some screws, it is possible to remove the logic board from the computer (which includes components such as processor, GPU, RAM, flash memory, T2 security chip, etc.). The problem is that all of this, as we already know, is properly soldered to the plate, making any glimpse of upgrades impossible.

Thinking about repairability, the good news is that the new fans (redesigned, which allow greater air flow and better control of the internal temperature) and Thunderbolt 3 doors can be easily removed and replaced.
The new speakers (in total, six), the 99.8Wh battery (11.36V and 8.790mAh), the keyboard and the Touch Bar, unfortunately, are glued to the housing, which makes things very difficult when you think under repair. On the other hand, the trackpad is “easily” removable.

It is also worth mentioning that the Touch ID (which also works as an on / off button), due to its direct connection with the T2 security chip, is also linked to the logic board – which makes it difficult to change.
The final grade of the 16 ″ MacBook Pro in terms of repairability? A shameful 1 out of 10 – at this point, unfortunately, the machine has made no progress.
Update, for Rafael Fischmann Nov 19, 2019 at 18:14
With the help of MacRumors, iFixit today updated the teardown with a new discovery: a sensor that identifies the opening angle of the 16 ″ MacBook Pro cover.

It remains to be seen what this new component is for, exactly. It may only be for the collection of internal data at Apple (due to the “Flexgate”, who knows?), or who knows, may be for a future macOS exclusive feature yet to be announced.
Guesses?