edmundronald;
Some FDM/FOQA programs provide this information already.
The flight data requires GPS data in addition to the usual parameters used to calculate air distance from the threshold to the touchdown point.
Determining touchdown point is easy with wheel-spin combined with a couple of other parameters but without wheel spin it can be done using a combination of vertical 'g', longitudinal 'g', spoiler deployment, radio-altitude.
Using standard formula and an airport database, distance remaining as well as distance required at a certain deceleration rate can all be calculated for every landing and fed back in terms of the usual graphs.
The data can be presented on-board but such systems require robust testing & certification if the runway remaining is to be helpful in real-time. Oviously runway contamination plays a significant role...