Adult Swim updated their long-term schedule
(many thanks to Henchman #17 in the comments and Kuiosikle on Twitter for pointing that out before I did my daily check) with the premiere of season four which will occur at midnight on October 18th (okay, technically that's the 19th, but only by like a minute). That's the night of Sunday if this after midnight malarkey still confounds you. So mark your calenders and get ready. No word on which episode will be airing yet, nor any names, but I'm sure in time all will be revealed.