Here is the family tree for the Apple Family of my next generation. Bios will be coming soon. Contains spoilers for “The Perfect Pear”.  
Family Tree setup inspired by
 
EDIT: I know there’s a line missing under Bright Mac and Pear Butter, I’ll get to that as soon as I can
 
Red-Married  
Blue-Offspring  
Halo-Deceased
 
Granny Smith & Unknown Stallion  
-Deceased  
-Parents to Bright Macintosh  
-Grandparents to Big Macintosh, Applejack, and Apple Bloom  
-Great-Grandparents to Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley
 
Unknown Mare & Grand Pear  
-Deceased  
-Parents to Pear Butter  
-Grandparents to Big Macintosh, Applejack, and Apple Bloom  
-Great-Grandparents to Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley
 
Bright Macintosh & Pear Butter  
-Deceased  
-Parents to Big Macintosh, Applejack, and Apple Bloom  
-Grandparents to Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley
 
Cheerilee & Big Macintosh  
-Parents to Crimson Crisp and Cherry Blossom  
-Aunt and Uncle to Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Fell in love after Big Mac broke up with Sugar Belle. Cheerilee was there to comfort him. After a few months, she confessed she liked him since the love potion incident.  
-Big Mac works on the farm  
-Cheerilee works at the Ponyville Schoolhouse
 
Applejack & Flim  
-Parents to Apple Slice, Appleseed, and Sweet Apple  
-Aunt and Uncle to Crimson Crisp, Cherry Blossom, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Flim developed a crush on Applejack shortly after the events of “Viva Las Pegasus”. He confessed his love to Applejack. After awhile, Applejack began to fall for him as well.  
-Applejack works on the farm along her brother  
-Flim helps sell the Apple Family products (not scamming this time )
 
Apple Bloom & Tender Taps  
-Parents to Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Aunt and Uncle to Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, and Sweet Apple  
-Fell in love after Apple Bloom reconnected with Tender Taps at one of is performances.  
-Apple Bloom stays home and helps care for the kids and does other things around the farm  
-Tender Taps is a performer who performs all over Equestria
 
Crimson Crisp  
-25 years old  
-Son of Cheerilee and Big Macintosh  
-Brother of Cherry Blossom  
-Cousin of Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Works on the farm with the his father and aunt  
-Is quite like his father in personality, but isn’t afraid to speak his mind  
-Was really close with Grand Pear before he died
 
Cherry Blossom  
-22 years old  
-Daughter of Cheerilee an Big Macintosh  
-Sister of Crimson Crisp  
-Cousin of Apple Slice, Appleseed, Sweet Apple, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Doesn’t really know what she wants to do in life, but helps her mother at the schoolhouse very often
 
Apple Slice  
-18 years old  
-Son of Applejack and Flim  
-Brother of Appleseed and Sweet Apple  
-Cousin to Crimson Crisp, Cherry Blossom, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Works on the farm (he’s the last one I promise)  
-Former Cutie Mark Crusader  
-Usually the voice of reason in the group of the Mane Six’s children (usually, not all the time )
 
Appleseed  
-16 years old  
-Son of Applejack and Flim  
-Brother of Apple Slice and Sweet Apple  
-Cousin of Crimson Crisp, Cherry Blossom, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Sells the Apple Family products alongside his father  
-The more quite one of the group  
-The first known unicorn born in the Apple Family
 
Sweet Apple  
-11 years old  
-Daughter of Applejack and Flim  
-Sister of Apple Slice and Appleseed  
-Cousin of Crimson Crisp, Cherry Blossom, Jazzy Jubilee, Rhythm Apple, and Gala Medley  
-Current Cutie Mark Crusader  
-Is quite good at cooking/baking  
-Is very vulnerable
 
Jazzy Jubilee  
-8 years old  
-Daughter of Apple Bloom and Tender Taps  
-Sister of Rhythm Apple and Gala Medley  
-Cousin of Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, and Sweet Apple  
-Eldest of CMC children  
-Isn’t very good at expressing how she feels
 
Rhythm Apple  
-1 year old  
-Son of Apple Bloom and Tender Taps  
-Brother of Jazzy Jubilee and Gala Medley (twin)  
-Cousin of Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, and Sweet Apple  
-Eventually becomes a dancer like his father
 
Gala Medley  
-1 year old  
-Daughter of Apple Bloom and Tender Taps  
-Sister of Jazzy Jubilee and Rhythm Apple (twin)  
-Cousin of Crimson Crisp, Cherry Blossom, Apple Slice, Appleseed, and Sweet Apple  
-Youngest of CMC children  
-Mute since birth  
-Has a keen sense of hearing  
-Eventually becomes a musician