My guesses (without benefit of Gatsby, Mother Play reviews)
Play: Stereophonics, French Republic, JaJa, Patriots
Musical: Suffs, Hells Kitchen, Outsiders, Illinoise, Wine/Roses
Play Revival: Appropriate, Enemy of the People, Purlie, Mary Jane, Doubt
Musical Revival: Merrily, Cabaret, Tommy, Spamalot, Gutenberg
Actor Play: Leslie Odom, Jeremy Strong, Michael Stuhlbarg, Liev Schreiber
Actress Play: Jessica Lange, Rachael McAdams, Sarah Paulson, Betsy Aidem, Amy Ryan
S Actor Play: Will Keen, William Harper Jackson, Corey Stoll, Will Brill, Billy Eugene Jones
S Actress Play: Kara Young, Sarah Pidgeon, Francis Benhamou, Allison Pill, Lakisha May
Actor Musical: Groff, BDJ, Brody Grant, Chip Zien, Dorian Harewood, Ali Louis Bourzghi
Actress Musical: Kelli O'Hara, Shaina Taub, Eden Espinosa, Ariella Jacobs, Maleah Joi Moon, Maryann Plunkett
S Actor Musical: Radcliffe, Skybell, Paul Alexander Nolan, George Abud, Joshua Boone, Wayne Brady or Philip Johnson Richardson
S Actress Musical: Lindsay Mendez, Leslie Kritzer, Bebe, Kecia Lewis, Nikki James, Jenn Collela.