I would love to have this feature done, as it would help a lot taxing in large airports.
As you know, Airport type charts are georeferenced and you can see your aircraft position as you taxi. But, these Airport charts are not as detailed as TAXI ROUTINGS charts, and the latest are not georeferenced, so you can not see your aircraft position when using those charts.
As an example, here is a Madrid LEMD comparison between AIRPORT and TAXI ROUTINGS charts.
When ATC gives you some complex taxi instructions, the second one helps a lot. So, in resume, I think that getting TAXI ROUTINGS charts type geo-referenced as AIRPORT charts are, would be really useful.