Questions about New Acrobat toggle and toolbar customization

I’m currently using Adobe Acrobat Pro Enterprise (Version 2026) and have a few questions about the New Acrobat interface and its long‑term availability.

1. Does Adobe plan to remove the option to enable/disable the New Acrobat interface? If so, is there any timeline for when this toggle will be removed? I’m teaching a class on Acrobat basics and want to make sure I’m preparing students correctly if the classic interface is only temporary.

2. Quick Actions Toolbar: In the New Acrobat interface, is it possible to dock the Quick Actions toolbar at the top and customize it the way we could in the previous version?

3. Navigation Bar Placement: Can the Navigation Bar be moved to the top in New Acrobat, or is that only possible if the new interface is disabled?

Any guidance or official information would be greatly appreciated. I want to make sure I’m teaching the most future‑proof workflow.

Thank you!