I have been working to implement a plugin for STK (Systems Tool Kit) for importing a flight log, recreating the flight, altering some sensor models to depict the camera and camera mode (i.e. field of view). I can pull the flight data in, overlay the captured video from the flight, compare with a "simulated" view of modeled sensor in the software, and do some pretty cool analysis with other tools in the software (reports/graphs, propagate GPS satellites and analyze and/or predict DOP values, calculate distances to other objects/ areas/ volumes.... the list goes on.
I also have been working to put in a RealTime capability so i can link up to my 3DR radio and monitor the flight of my IRIS+. You can see some demonstration of what i have working so far here:
Let me know what you think! I am still trying to wrap my head around the whole MAVLINK world, but i have made some progress! Thanks to a few folks on here who have given some guidance as well.