From what I am reading there is no way to do this...but I am hopeful!
I have a master project that has dozens of other .aep's imported. When I make changes to any of the original .aep's they do not update in the master project. With changes to assets I can simply "reload" them to see instant changes...is there any way to do this with imported .aep's?
Your fears are correct: once an AE project is imported into another project, it takes on a life of its own. If you make changes to the original project file, those changes DO NOT appear in the same project imported into another one. Likewise, if you alter an imported project, the changes do not appear in the original.
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
There is a third party app/script that does this, AE Project Sync. It has trial version, so you might want to check it out.
Johnny Cuevas, Editor
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.