  Following the precise measurement of $\theta_{13}$ by reactor experiments
three main questions remain within the now standard picture of neutrino
oscillations: (1) Is the value of $\theta_{23}$ such that the $\nu_3$ state
contains more muon flavor, more tau flavor, or equal amounts? (2) What is the
neutrino mass hierarchy? (3) Is CP violated in the neutrino sector? The NOvA
experiment will address all three of these questions. In each case the
measurements are statistics limited motivating exploration of what could be
accomplished with additional exposure.
