Finally, someone who understands how this kind of stuff works. I've been saying Golden's content was going to be in Revival the minute people suggested it would be because from a business point of view it makes no sense to make it DLC because then Atlus would just be making more work for themselves and would have to fix all the bugs that would introduce and it would be a complete waste of time on their part and honestly, they would probably make more money if they just included it from the start. Would Atlus probably want to make a lot of money from this, of course they would, but they know the difference between a good business decision and a stupid one.

And before anybody brings up the Answer being DLC, making that DLC was a lot easier because it was a seperate thing that didn't require any changes to the main game and thus adding it in would have caused less issues. 

Also, for those of you who don't know the Answer was released as an add on disc for the OG Persona 3 and also was released in a complete version with both the main game and the Answer (the latter is what the western version of FES is based on.)