Apparently ABC made a public announcement that their hit show Lost would run until 2010 and then end. This is a response to the flagging ratings of season three foremost it seems. I just heard on NPR while running some errands - I'll try and find out more concrete info tomorrow.
OK, more info:
In a highly unusual move, the network announces plans today to end the show after three more shortened seasons of 16 episodes each. The episodes will air consecutively, repeat-free, from February to May.
Thanks Thomas! On the radio they noted more about the causes (ratings) and that apparently this is taking a page from HBO's book, but I can't say I'm familiar enough with their shows to get the connection. Is this a shame? I dunno, I've always advocated that Lost needed a firm deadline so that it could stop wandering around the main mystery and story. Still, I think the ratings were due to fix themselves just by having higher caliber writing in general.