While the Animorphs movie may be on hold indefinitely, there is some good news for fans of the Gone series by Michael Grant (co-author/co-creator of Animorphs). Confirmed via Twitter by Michael Grant himself, Sony Pictures has agreed to acquire the TV rights to the Gone series:
As Michael states above, please remember that this does not confirm an actual Gone series on television at the moment, but it does significantly increase the chances of one. Fans of the series can follow Michael Grant on his Facebook and Twitter for further info and future announcements.