This is incorrect, based on my understanding of what Roger has said here and on TGP.
The Aftershock and other One Series pedals don't "hold" 128 presets, they only hold six. The Hub stores the preset information contained in scenes, then sends it out when scenes are recalled. The 128 scenes are actually separate from the six stored-in-the-pedal presets.
The C4 is different in that it actually has the memory for 128 presets of its own, stored in the pedal; the hardware allowing for this memory is different in the C4 than in the other One Series pedals. These can be accessed via MIDI either through the Hub or over USB.
The C4 won't work in Hub scenes (for now) because of the additional parameters in a C4 preset, the Hub's code currently is not written to support the extra parameters in scanning / saving from this particular pedal. But it can still interface with the C4 in other ways.