We haven’t heard anything from Neural about going back to change or retrofit the connector to a locking type.
This feature request is valid, but I think there is a better way to accomplish what you’re trying to do.
If your on-stage experience is really that chaotic, I would highly suggest at least mounting your QC to a small pedalboard. A locking connector would help to prevent accidental removal–but may introduce a risk of damage to the QC’s circuit board if it gets knocked around or stepped on. Less risk of damage like that if it’s on a pedalboard.
Here is a thread about the connector itself: