Nine new episodes are expected to air (#31-39), but Cartoon Network has yet to release a full schedule.
Going back to the previous story about Cartoon Network would be delaying new episodes of JLU until June/July, we can now report that the new episodes of JLU will begin airing on Feb 11th at 10:30. Nine new episodes are expected to air (#31-39), but Cartoon Network has yet to release a full schedule.
Source: comicscontinuum