2009
Yes, there will more than likely be a sequel because of how the Battle of the Labyrinth ends. As of Friday, August 15th, 2008, the sequel's name is not known for sure, the sequel is called The HalfBlood Flies, this is the seqeul get it!
there is no movie sequel to it. but there is a manga sequel it is called RETURN TO THE LABYRINTH. there are very little sites that have it though.
Yes its called The Son of Neptune
October 4th
The first of the Percy Jackson and the Oympians is: The Lightning Thief, the sequel is The Sea of Monsters, the third is The Titan's Curse, the fourth is The Battle of the Labrynth, and the last is The Last Olympian.
aaron eckhart wants there to be a battle la sequel but is hasnt been confirmed
there will be a sequel to The Lost Hero called Son of Neptune in Fall of 2011
Battle of the smithsonian
A sequel of The Percy Jackson series is coming out in october called The Heros of Olympus.
Carl Deuker isn't planning on it at the moment.
The creators of the film are currently working on the sequal to The Dark Crystal. They have said that when they were done they would consider a sequal to Labyrinth. For an unnofficial sequal look for "Return to the Labyrinth" a manga book series by TokyoPop