Upcoming 4K Ultra HD Releases

There's streaming services: Netflix, Amazon, Vudu, etc. ESPN will be launching this year. There are other threads on that.
 
Best Buy stores have a dozen of 4K titles on sale. (Mostly Fox I believe.)
 
4K Blu-ray:

Already released (in Best Buy):
  • The Martian 4K (Blu-ray)
  • Maze Runner: The Scorch Trials 4K (Blu-ray)
  • Fantastic 4 4K (Blu-ray)
  • Exodus: Gods and Kings 4K (Blu-ray)
  • Wild 4K (Blu-ray)
  • Kingsman: The Secret Service 4K (Blu-ray)
  • Hitman: Agent 47 4K (Blu-ray)
Coming on March 1, 2016:
  • Pan 4K (Blu-ray)
  • The Expendables 3 4K (Blu-ray)
  • Sicario 4K (Blu-ray)
  • San Andreas 4K (Blu-ray)
  • The Last Witch Hunter 4K (Blu-ray)
  • Mad Max: Fury Road 4K (Blu-ray)
  • X-Men: Days of Future Past 4K (Blu-ray)
  • The Smurfs 2 4K (Blu-ray)
  • Pineapple Express 4K (Blu-ray)
  • The Amazing Spider-Man 2 4K (Blu-ray)
  • Hancock 4K (Blu-ray)
  • Salt 4K (Blu-ray)
  • The Maze Runner 4K (Blu-ray)
  • Life of Pi 4K (Blu-ray)
  • The LEGO Movie 4K (Blu-ray)
  • Ender's Game 4K Blu-ray
  • Chappie 4K (Blu-ray)
 
Preordered Ghostbusters 1 UHD, and will grab ID4 UHD when it goes up. Both are 4K masters. Also betting the new Wrath of Kahn gets a UHD/HDR release too!