"Beetlejuice" plans events for every day of October; "Sea Wall/A Life" to be audio-recorded for Audible; Jason Robert Brown and Robert Horn's "13" musical will be made into a film; "Saturday Night Fever" 20th anniversary reunion event CSC’s "Assassins" casting announced; "Between the Lines" musical to play Off-Broadway; transgender actor Alexandra Billings will join the Broadway company of "Wicked" in January; Caissie Levy and Patti Murin will leave “Frozen” in February; MCC Theater announces a new musical development initiative