I am not going to spend too much time of these, most of which are presented off-screen or before the actual ceremony. But I will at least give you my usual Will Win, Could Win, and Should Win, the other categories will get more discussion in the next several days.
Best Art Direction
Will Win - Lana Del Rey "National Anthem"
Could Win - Janelle Monae feat Erykah Badu "Q.U.E.E.N" or Alt-J "Tessellate"
Should Win - Janelle Monae feat Erykah Badu "Q.U.E.E.N"
Will Win - Bruno Mars "Treasure"
Could Win - Jennifer Lopez feat. Pitbull "Live it Up"
Should Win - Ciara "Body Party"
Will Win/Should Win - Macklemore and Ryan Lewis "Can't Hold Us"
Could Win - 30 Seconds to Mars "Up in the Air"
Will Win/Should Win - P!nk feat. Nate Ruess "Just Give Me a Reason"
Could Win - Any of them
Best Visual Effects
Will Win/Should Win - Skrillex feat. The Doors "Breakin a Sweat"
Could Win - Duck Sauce "It's You" or Wicked Games "The Weekend"