Sounds like a pitch for why the next version of Thunderbird will be "AI-enabled".
What's planned for upcoming versions of Thunderbird are in public roadmaps:
https://roadmaps.thunderbird.net/en-US/
Those two images in the post do look... "AI-enabled"
Thunderbird has spun off from the usual Mozilla stuff. I would be shocked if they moved in this direction.
What's planned for upcoming versions of Thunderbird are in public roadmaps:
https://roadmaps.thunderbird.net/en-US/