first, im a big fan, great work ! i own Xu4, Rpi3b+ and N2, always eager to test your builds !
One thing that i love running emulator on my Wii is the clean "3D box Coverflow" interface. https://www.youtube.com/watch?v=npRTxIFay1E
Are you thinking of creating a similar interface for batocera ?
A lot of us don't really care about the meta data and videos and prefer having a clean display of our games boxes, aka in real life display.
You may argue that most arcade don't have 3D boxes, but some people have put a lot of work to create some https://gbatemp.net/threads/cover-collections-for-emulators-with-cover-support.324714/
and its a delight to have them on the Wii.
It would be a great differentiation for Batocera.
In any case, thank you for your hardwork ! Much appreciated