This morning I tried to find out.
The pana panel has some presets for video, like "cinema", "normal" and "dynamic".
So I changed the originale setting from "cinema" to "dynamic". These settings has their own settings like colour, contrast, sharpness etc.
After the change I put the tv in standby and waited for about 20 seconds.
Then I pressed "TV" and it took a several extra seconds to turn on the panel.
And again after accessing the pana menu, it says "cinema". So the orignal settings were restored!
So, I went a little further.
I changed some settings within the preset, like colour, contrast .
And again the changed video settings were set back to the original values.
I've tried changing also some sound settings, but those are not set back. Probably the sound options aren't used at all. (logically).
As I know that all the panels (as I'm told by the seller of profi panels) has the same RS232 instructions, I'm beginning to doubt that B&O puts their own software in the pana panels.
So, that would mean that you can change an older panel without any problems with a newer version.
Could someone confirm this?