Soon, Friday Night Lights and most other shows will go into repeats or hiatus until Hollywood's labor disputes end. How soon? That depends on how the networks play December, typically a month of few viewers and many repeats.
Airing more repeats than usual would take most prime-time series into January, at best. The Los Angeles Times reports that amidst the Writers Guild of America strike, 15 of 22 Friday Night Lights episodes - more than most series expect to complete - will be finished when production shuts down. Stay tuned.