Final Update
Sorry the final update is really late, I've been working on my NaNoWriMo novel and haven't had much time for it. So here are the characters who made the final cut. Sorry if your character didn't make the final cut, but I had loads of Mary-Sues, characters that would've been better off as main characters in their own stories and characters that will possibly just have a background role. If your OC isn't mentioned here, don't lose hope, they may have a role later on!
Andi Wentworth
Set Setsuna
Greyson Rent
Ace Holdsclaw
Scarlet Cross
Cat Delaney
Hayley Grey
Dusty O'Connor
Rowan Smith
Toni Carroll
Des Amato
Gracie Axon
Syd McKenzie
Jenna Carter
Taryn O'Brien
Alanna O'Brien
Hannah Coons
Alyssa Binusky
Julian Richards
Jory Paisley
Akio Kyoto
Lyre Masmordre
James Goodbury-Waters
Aiden Brown
Frankie Bandit
The Quidditch teams are as follows:
Gryffindor
Keeper: Greyson Rent
Chasers: Roxanne Weasley, Hayley Grey & Rowan Smith
Beaters: Andi Wentworth & Fred Weasley II
Seeker: James Potter II
Hufflepuff
Keeper: Dusty O'Connor
Chasers: Cat Delaney, Hannah Coons & Louis Weasley
Beaters: Lorcan Scamander & Gracie Axon
Seeker: Jenna Carter
Ravenclaw
Keeper: Lissa Binusky
Chasers: Molly Weasley, Des Amato & Aiden Brown
Beaters: Taryn O'Brien & Alanna O'Brien
Seeker: Scarlet Cross
Slytherin
Keeper: Julian Richards
Chasers: Ace Holdsclaw, Scorpius Malfoy & Jory Paisley
Beaters: Set Setsuna & Akio Kyoto
Seeker: Lyre Masmordre