What I would like to do, is fly my Mavic 2 Zoom (less expensive) quad on a complex mission, see how it went, then fly my Matrice 210 (much more expensive) quad using the previously flown flight path. The Mavic would be like a test flight system, maybe done many times, once a good path is determined, then use that path to fly the Matrice.
You can already:
record a manually flown flight
convert that flight into a mission (with smoothing, without smoothing and precise follow, ...)
refly the mission automatically (with a more expensive drone)
With the next update you can also fly a mission automatically without recording any media, which will be good to test the flight plan trajectory before actually collecting data.