Squirmy Hooves

Button s' mom looks cuter than Mrs. Cake, but the first just looks like a young adult pony with a talent for being motherly, and the second actually looks like a woman in her 40's that actually has kids. ButtonMILF discovered her talent for motherhood as a filly (think around 11-12) and adopted newborn baby Button, and now Button is 9, and his mom is 20-21.

Well, Applejack is the one that cares for her family values. Rarity and Flutters could adopt a child too, but Twilight would just use books to do it, Rainbow Dash is not the kind of pony that would be a mother, and Pinkie Pie is too hyperactive.

The show would feature Derpy, Doctor Whooves, Lyra, Bon-Bon, Vynil and Octavia as its Mane Six = Elements of Harmony. Derpy would be the one to become a princess at the end. The background ponies turned-mane six in this "universe" have unique designs, with unique eye shapes and hair styles. Applejack has the design of our Bon-Bon\Shoeshine, Pinkie Pie gets Golden Harvest\Daisy's, Fluttershy gets Cloud Kicker\Merry May's, Rainbow Dash takes on Derpy Hooves\Raindrop's (and now she has both purple-pink hair and eyes), Rarity is a Lemon Hearts\Twinkleshine recolor, and Twilight is a Lyra\Amethyst Star recolor. If all the main\secondary characters get swapped with background ponies and HasbrOC, and this show had the current Mane6\Cheerilee\Trixie and other recurring character as background ponies, we would ask something like: "What if Twilight Sparkle, Rarity, Fluttershy, Rainbow Dash, Applejack and Pinkie Pie were the Mane 6, and Sweetie Belle, Scootaloo, and Apple Bloom were the Cutie Mark Crusaders?"

Except Rainbow Dash and Pinkie Pie were also names of characters in G3, that most of the characters' personalities are based on G1 ponies fused with G3 ponies, and that FiM was supposed to feature redesigns of G1 Ponies that were recolored into the Mane 6 due to copyright reasons, and that Lyra was designed by a pony randomizer directly on Flash, not Lauren Faust. And that Lyra s' obsession with humans only came when the fans noticed a scene of her sitting on a bench. Which is just how her animation model sits, Amethyst Star also sits the same way and has the same expressions and "skeleton" as Lyra. She is just shown to do that less.