Any such system from a manufacturer would assuredly also include an interface with the odometer that would record those miles the vehicle was towed. That would mean the warranty would expire much quicker for many owners Adding to the overall cost.
With the current 360 degree cameras any alignment system is redundant. Towbar brackets are not universal, so any system would need to have either to have options for the different tow bars or require the purchase/ownership of specific brands and models.
As for cost, it would need to be comparable at least to the cost of aftermarket, and likely less since you couldn't take the components with you when you change out to another vehicle. Finasly, for it to be practical for the RV market, it would need to be offered over a range of vehicles since different people want different types of toweds. Some want tough off road vehicles like jeeps. Some want small econo boxes, some want maximum people capacity, some want luxury, some want sporty, and some want to tow trucks with cargo beds filled with toys.
That is my long analysis, my short version is it isn't even remotely going to happen.