Good video, very much worth watching despite the length. New UI will look something like this:
with an option for a more classic look.
Looks like an enourmous UX improvement too, and a rewrite to QT and eliminating a lot of technical debt will make development faster.
And what exactly does Tenacity bring to the table other than a name replace across the code-base?
The non-destructive editing and realtime effects alone are a huge jump in capability between the current and old versions of Audacity, and that's before we even discuss UI improvements