Aug 15 2007 02:28 PM Update on Maple Story's premier date:
"MapleStory Online RPG Inspires TV Anime in October
TV Tokyo has announced that it will start broadcasting an animated series based on MapleStory, the Korean fantasy massively multi-player online role-playing game (MMORPG), on Sunday, October 7 at 8:30 a.m in Japan. The series will take over the timeslot that currently runs Tengen Toppa Gurren-Lagann. TV Tokyo posted the news on Anime X, its anime-centered website for mobile devices. The Japanese game version's maintainer Nexon had previously announced that Madhouse Studios (Last Order: Final Fantasy VII, Vampire Hunter D: Bloodlust) was to animate."
Well, looks like now we know when Tengen Toppa Gurren Lagann will end specifically