Reid said after Sunday's game that Vick remains his starting quarterback, if healthy. The last two words there are the key.
Jeff McLane of The Philadelphia Inquirer reported that Vick still looked "woozy" in the locker room after the game. He was quickly diagnosed with having a concussion. In general, players usually miss at least a week of play after suffering a concussion.
It would be a surprise to see Vick to play again soon. And it wouldn't be a surprise if Foles started for the rest of the season.