When 24 finally returns, the season may not be 24 episodes long. Each episode would still be an hour in length (episode time, and "real-time") there would just be less of them. The details can be found here.
What do you think? I don't know if they should abandon the 24 episode format, that's the whole reason the show is called 24. But it would eliminate a lot of the garbage that shows up in a given season (you'd hope), and might be the only way we get 24 back.