In my opinion widget access in the quick panel and even the notification panel would be a great addition. I frequently use the Galaxy Buds control panel and do not want to have to go to the home screen to check battery level and change settings, I would like the settings to be right there. If there is enough space, being able to have more then one widget would be amazing.
There are other posts mentioning quick settings panel customization and I think this would work incredibly well with that.
Honestly, that would be such a nice feature. There's already a good amount of blank space at the bottom of the new panel so they could either move it down, or let us put a couple widgets there