I only watched the TJ/CK clip once, but I thought the new Tone and Gain control only needs to be applied to a single profile, i.e. not interpolating between a number of profiles, which I believe a few people have suggested. This will be done either:
(1) By taking an existing profile and letting the new Tone/Gain control know what the settings of the amp were for the profile (no details were given as to how yet), so that the controls accurately change the amp sound from the baseline position; or
(2) Can be baked in when making new profiles.
I could be wrong though of course, but if I've understood correctly I'm looking forward to having a single profile which captures a baseline of the amp and then having the Tone and Gain Control to make changes as you would with a standard amp. This should also cut out the issue* where someone profiles sweet spots on an amp by dialling in tones with a Strat in pick up position 1, but you the buyer are going to use an archtop style guitar to play the profiles. It shouldn't matter anymore with Liquid Profiling, whether the baseline profile was set to tame an ice pick sounding Strat, as you can tweak the Gain and Tone to suit the guitar you are using just like you would with a standard amp.
*I don't think this issue has been discussed much over the years and whilst I believe it was @waraba(?) who produced SC and HB specific packs, a lot of profiles state suitable for both SC and HB. However, I always think, "well surely the amp setting suits the guitar type you used to find the sweet spot when profiling, so they're not always going to be multi-purpose". I'd be interested to know if I'm wrong about this being an issue, albeit one that I think is resolved by the new Tone and Gain control functionality.
Thanks Kemper and whilst lbieber would prefer we wait until we've tasted the pudding Kemper has cooked for us, I can't help but smell it and feel a little excited.