"Everybody at the company is evaluating all their production commitments in light of the strike," a source says. "It still might happen at a later date. If there's a strike, they want to be prepared to reallocate resources in other ways."
The show was scheduled to air in the "Heroes" slot as part of May sweeps. The project was announced earlier this year as a way of expanding the network's highest-rated drama and giving the series enough episodes to prevent the ratings erosion suffered by serialized dramas during a long hiatus.
NBC's flagship drama "Heroes" has fallen in the ratings since its sophomore debut this season, with the most recent episode earning a 4.9 rating among adults 18 to 49.