I've seen a few others posting their lists publicly, and since I'm being pretty obvious about one of the things I'm nominating this year, I see no harm in revealing the rest of the things I plan to nominate.

Best Novel

• The Wheel of Time by Robert Jordan & Brandon Sanderson
  
• The Ocean at the End of the Lane by Neil Gaimen
  
• Parasite by Mira Grant
  

Best Novellette

• "The Lady Astronaut of Mars" by Mary Robinette Kowal
  

Best Short Story

• "The Oregon Trail Diary of Willa Porter" by Andy Marino
  

Best Related Work

• "We Have Always Fought: Challenging the Women, Cattle and Slaves Narrative" by Kameron Hurley
  
• Medieval People of Color
  
• Dragonmount.com by Jason Denzel and Jennifer Liang
  
• Tor.com, edited by Irene Gallo
  
• Writing Excuses
  

Best Graphic Story

• American Captain: Little Dog by Robyn (the entire blog is great, but Little Dog is a great standalone series)
  

Best Dramatic Presentation (Long Form)

• Pacific Rim
  

Best Dramatic Presentation (Short Form)

• Almost Human "Arrhythmia"
  
• Game of Thrones "Rains of Castamere"
  

Best Editor (Long Form)

• Harriet McDougal
  
• Toni Weiskopf
  

Best Professional Artist

• Ariel Burgess
  
• Paul Bielaczyc
  
• Tyler Jacobson
  

Best Fan Artist

• Alec Phillips
  
• Jose Sanchez
  
• Amy Dale
  

Best Fan Writer

• Leigh Butler
  
• Linda Taglieri
  
• Aidan Moher
  
• Adam Whitehead
  
• Maureen Carr
  

Remember, if you want to nominate something this year, you need to be registered for WorldCon by January 31. I posted a list of things that are Hugo eligible here if you need more inspiration.