As announced at Momocon at the Toonami Panel, Cowboy Bebop will be returning to Adult Swim’s Toonami Block with non-HD episodes for now.

At that time, we were not given an other details on its return. As of yesterday we now know that Cowboy Bebop will make its return sometime in July. No exact date has been announced as of yet, but stay tuned to find out more information as it comes available.

Source: ToonamiFaithful.com