Thanks Mudgel I use track templates all the time they are critical to my workflow and really useful.
In the situation we are discussing though they are less useful as if you insert track templates during the mix process for bus structures etc then they wouldn't be recognised by mix recall. Alternatively if I set up a massive track template from the onset with tons of buses I may want to use or not during the mix process, the mix recall functionality currently doesn't recognise changes and recall the routing between these buses.
I totally understand that mix recall doesn't and probably shouldn't ever keep track of changes to core data but as described earlier a bus doesn't ever store any data / recorded audio it is just a routing mechanism for it so in my eyes it would be wonderful if mix recall could also bring back changes to the right of the master fader