Pseudo realtime or realtime prediction feature


I wonder if it will be legal and possible to implement a new map display (added to the normal 5 minutes delayed one) derived from the flight plan and current speed and direction to have a pseudo realtime map but with a message in the top of the map advising this is an anticipated map display (5 or 6 minutes) and that maybe the info will not be correct in the normal map 5 or 6 minutes later?

Luc Fontaine
1 km from YSG
100 km SE YQB