On the DPA Picture Alliance website there's some photos of the 433/437. Not the greatest of photos, but it does show the G39, new 433 handguards and a new 433/437 PDW stock that's like a MP5 collapsible stock.
Per the Dexheimer: Mission Bundeswehr YouTube channel, the German Army has ordered the first full-fledged deliveries of the G95A1 earlier today.
There's also this (though I couldn't get Google Translate to work on the article)...
In German (though YouTube has an auto translate feature in the caption area), not so much a 416 video, but an hour-long overview of HK's history in small arms development culminating with the 416/G95 family:
More 433 and G36:
https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd.it%2Fgerman-ase-operators-during-a-bi-national-psd-deployment-to-v0-ehqchb9dieye1.jpg%3Fwidth%3D1080%26crop%3Dsmart%26auto%3Dwebp%26s%3D19ebd58461894af97e7abfe7c268c4db04df4e26