I think it could be handled similarly to how we handle FFT Arena, in that the matches can be recorded and commented over and then posted on Youtube.
There are a few things I'd like to suggest though:
-I'd like to use FFTA: GG as a base, to test the job balance in action with real players, and even though it's a beta currently, it's already leaps and bounds more balanced than the original.
-Levels would be maxed out, gear can be decided on later.
I know there's an emulator out there that supports multiplayer GBA, but I have no clue what it is.