So if The Mortal Instruments can get turned into a movie and then get turned into a TV show three years later, I think we can have Harry Potter TV show WITH THE FOLLOWING CONDITIONS:

• Sarcastic, messy-haired Harry with eyes that actually match his mother’s
  
• Loyal, brave, smart, AND funny Ron (not comedic relief Ron)
• Flawed perfectionist Hermione who follows too close to the rules, makes color coded study schedules, drives Ron and Harry up the wall, is sometimes a goody-two shoes, and has some serious insecurities with regard to her academic ability
• SPEW
• Peeves
• Sarcastic, popular, badass Ginny
• REGULUS BLACK
• Accurate Marauder era portrayal
• Neville visiting his parents at St. Mungo’s
• Harry smashing Dumbledore’s office
• REGULUS BLACK
• Winky
• Kreacher’s full story
• SPEW because the oppression of house elves in the books is such a huge deal. It was, essentially, what killed Sirius, and the alliance of house elves on both Voldy’s side and Harry’s side made significant impacts on the outcome of the prophecy.
• Phineas Nigellus
• “Have a biscuit, Potter.”
  
• “There’s no need to call me sir, Professor.”
  
• Ginny and Harry bonding over the fact that they’re the only two people who have been possessed by Voldemort.
• Dumbledore’s full backstory
• REGULUS BLACK
• “It screws the other way.”
  
• Harry disguised as Barry Weasley at the wedding and talking to Viktor Krum about Gregorovitch
• “Give her hell from us, Peeves.”
  
• The brain room in the Department of Mysteries
• The time room in the Department of Mysteries
• Blast-ended Skrewts
• Rita Skeeter being an Animagus
• CHARLIE WEASLEY
• Percy’s full story
• Actually give Fred’s death justice by showing it because FRED AND PERCY
• All of Tom Riddle’s memories
• REGULUS BLACK
• Tonks’s patronus
• Neville being the potential Chosen One
• REGULUS BLACK

Feel free to add.