Update 9:54- NBC’s Bob Costas has confirmed that the game will be flexed to Sunday Night Football.
For the second straight week, the Philadelphia Eagles will be flexed into Sunday Night Football, per ESPN’s Adam Schefter.
Cowboys-Eagles will be flexed to prime time next Sunday night, per NFL official. — Adam Schefter (@AdamSchefter) December 23, 2013
This isn’t a surprising move considering that the game will be a win-or-go-home game, that decides the NFC East champion. And, barring a complete collapse from the Eagles, a win will guarantee them the third seed in the NFC.