Is it possible to program/load a flight path for the Mini 3 Pro (or does another model)? I'm particularly interested in the possibility of revisiting a previous flight for a before/after contrast.  There are a few videos I've done that I kept the SRT file for. Probably not, but I figured I'd ask.

With 3rd party apps like dronelink & litchi app yes you can do waypoint saved missions over the years however they are not pinpoint accurate specially the height which is calculated by barometric pressure.
You will need RCN1 with android phone to use these apps. Both apps are in beta testing phase.

Hi, Alexis. Thank you for reaching out. For this concern, please contact our dev team via email at dev@dji.com for further consultation. Thank you for your kind understanding and support.