The trick is being able to retrieve the data from the cameras to get the video/pics to the shop to sell securely and timely. The key would be if they could build out a wireless network that can connect and transfer the data fast enough to be available by the time you get to the photo hut. It would probably have to connect with each seat too.
See Dollywood's system for Wild Eagle- actual onride video footage from cameras mounted in the cars on the back of the seat in front of them, transmitted wirelessly and able to be purchased as soon as you get off of the ride. you can see it from our recent trip at
https://youtu.be/5a-AkTBpsC0in this case, the car would need an "island" or something in the middle of it to hold the cameras, but they've got them small enough now that it wouldn't take much room and is very possible.
That doesn't mean they are going to do it with TT. I've no clue if they want to or not. But saying that it most certainly is possible and is happening on other coasters now if they wanted to go with on ride footage from on the cars themselves.