I'm not up on every bit of leaked info and interviews, but I'm not sure there was a grand plan.
Faust's master talent, above all else, is worldbuilding. Every show she's done worldbuilding for has had a VERY stable foundation. Foster's (collab with her husband), FiM, Super Best Friends Forever, DC Super Hero Girls. Foster's has Faust's style all over it, so I'm more willing to give her co-credit for that than I am for Wander Over Yonder and Kid Cosmic. But Wikipedia does say "developer" for both of those, so maybe she did work with Craig to make those worlds come to life.
Even if Faust did have a plan from day 1 (the pitch bible has leaked, and I don't think there's a Master Plan in there), things change. I don't think the SpongeBob or Avatar TLA bible is 1:1 to what came on screen. Shows are made over the course of years, with tons of pressures both internal and external. Almost every show is uneven specifically because of how they are made. It is a rare show that has every episode made at a consistent level of quality and all building towards a grand vision.
I do think Twilight's graduation (the leaked art) was going to happen. I always wanted something like that + becoming an alicorn as the series finale. Maybe that could have been what happened if season 3 was the end, but the show kept running.
I think when most people build shows, they put stakes in the ground for lots of ways the network and writers can take it. Twilight is a scientist (telescope, Pinkie Keen), Applejack has a huge family, Twilight has friends in Canterlot, Scootaloo's parents are not on screen and she is basically disabled. It's a story that CAN be told, but isn't specifically planned out from the start.
IIRC there are a few interesting things about the finale:
I believe they said when they made the finale, they didn't know if season 4 was happening. Note also the 11 month gap between season 3 and season 4 airing.
MA Larson says the script he turned in was not a finale script. It was just about cutie marks getting swapped. The alicorn thing was not in there.
He's the only credited writer on that ep iirc so who wrote that part? He made it sound like every script writer on MLP was a freelancer, and once their script was turned in, it was out of their hands. Probably the showrunners tweaked from that point onward. There might have been a "writer's room", but maybe they just convened at the start of a season, bounced ideas off each other, then went home and wrote scripts without interacting again?
>>42345432Basically agree. Except
>nor would that fit Hasbro's goal of marketing set piece toys,New locations work great for toys (see the G4 movie).