While Tom Stoppard's new piece Leopoldstadt managed to get a few performances in this year before being forced to pause its Wyndham's Theatre run due to COVID, Sonia Friedman's other highly anticipated show of 2020, To Kill A Mockingbird starring Rhys Ifans, still has yet to see the light of day. Now after a year of lockdowns, socially distanced shows, more lockdowns, and the introduction of the COV…