It will happen exactly one day after you need it to prove your innocence in a car crash. At least that is how my luck usually works
The big impediment to such design advances is money. The dashcam market isn't going to generate the profits needed to make this happen soon. I'm sure this is possible today but we won't see it until it can be done profitably
Having said that, we also need to consider that hobbyists might bring us something, like in how the Mobuis cam came into existence
If we compiled the knowledge and efforts of all the folks here on DCT into making a cam like this, we could probably have it in our hands within a year or two. That is asking a lot from the few who would bear the brunt of the workload, and in the end it would not really be worth their time to give their hard-earned knowledge away so freely.
Let me win the Powerball lottery and I'll have your cam built shortly thereafter. Until then I'm waiting with you
Phil