There's 3seasons left...and they will be 16 episodes each.I think thats good so no mid season break...

http://www.abcmedianet.com/assets/pr...050707_01.html

ABC GIVES VIEWERS 48 MORE ORIGINAL EPISODES OF THE HIT DRAMA "LOST,"
CULMINATING IN AN EXCITING SERIES CONCLUSION
Episodes Will Air Uninterrupted Over Three Seasons
Starting with the 2007-08 season, ABC will begin airing the 48 remaining original episodes of the hit drama "Lost," it was announced today by Stephen McPherson, president, ABC Entertainment. The episodes will air uninterrupted over three seasons (16 episodes each season), with the series concluding in 2009-10 with a highly anticipated and shocking finale.