This is the strongest Best Actress roster in recent memory. Benanti, Mueller, McDonald, Errivo, Soo, Cusack, Villafane.
Of those, I would say the first four are locks, Soo is very likely, and Cusack and Villafane could each easily be spoilers in a sixth slot.
The rules could even allow for all 7 to be nominated in the case of a three-way tie.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."