Sounds like you'd need a chart for "speed at distance X" where X is variable dependent upon which runway is being used, and all the usual parameters affecting takeoff distance calcs would also apply. So it wouldn't be a simple chart.
Then you have to decide whether the chart should have any implicit conservatism or not? Should we post a speed at distance X corresponding to 'minimum' performance (i.e. consistent with the existing AFM data) or consistent with nominal performance? Either has pros and cons. It may not be possible to 'collapse' the AFM data as neatly as for the existing charts, especially if you're not trying to present minimum data.