The mane babies.  
Wild Strike - Rainbow Dash/Discord-Short-tempered-Very protective of her friends and family-Terrible flyer-Admires her Aunt Scootaloo-Left Ponyville when she was a teen-Has a strained relationship with both of her parents  
Quick Wit - Rainbow Dash/Discord-Loves to learn and read-Great at solving puzzles and riddles-Afraid she’ll become evil-Looks up to her teacher, Snails  
Silver Blaze - Rarity/Spike-Anxiety ridden-Doesn’t mind getting dirty-Likes to make gifts for her friends-Low self-esteem-Used to cling to her parents  
Artful Bliss - Pinkie Pie/Gilda-Mute; Communicates with a small chalkboard she carries around-Hyperactive-Niave-Makes toys-Loves babies and kids  
Wishing Star - Twilight Sparkle/Sunset Shimmer-Very smart-Easily distracted-Loves to spend time with his cousin, Flurry Heart-Sometimes helps out at Sweet Apple Acres to avoid his studies  
Skinny Delicious - Apple Jack/Soarin-Cares for the vampire fruit bats at Sweet Apple Acres-Makes healthy, low fat treats-Has body image issues-Envious of his cousin, Apple Burst-Hates the rodeo-Grew distant from his mother as he got older  
Pink Lady - Apple Jack/Soarin-Bee charmer/Honey collector-Stubborn like her mother-Likes to have little debates about bees/bats with her brother-Very close with both of her parents-Has a massive sweet tooth  
Soft Spark - Fluttershy/Lightning Dust-Extravagant-Loves her Uncle Zephyr Breeze-Amazing flyer-Training to be a Wonderbolt-Loves attention; Likes to show off  
Storm Chaser - Adopted by Fluttershy and Lightning Dust-Was found in Everfree Forest by Soft Spark when they were both fillies-Condescending-Bitter-Deaf; Has to wear a hearing aid sometimes-Adores her parents and sister; Dislikes everyone else-Afraid of the dark
 

 

 
MLP:FIM (c) Hasbro