I like this idea a LOT.
Even though it's actually possible to do it right now, as Andy mentions in the video, it would be awesome if CK could enhance on this.
Thanks to forum member Sledge139 who started a thread about it.
Basically, during the refining process you can feed an old guitar track, or new track, etc, into the Kemper Return and the refining process will not only tone match the EQ but also attempt to match other parts of the tone, possibly distortion level, etc.
I like this idea because, about 7 years ago a friend of mine recorded an entire album by micing up and old home made amp, a 12 watt Solid State amp into an old 12" Vintage Greenback 25w speaker.
He used Les Paul into an old Marshall Drivemaster pedal into the amp mic'd with (I cant remember the exact name of the mic).
The tone was brilliant, but that was years ago, the amp is no more and now we want to retrieve that tone.
Listen here, from 5:07, Andy says he's mentioned it to CK..."I keep telling Christophe he should do this but he's not listening to me".