Giancarlo suggested S6 may be the end (which would put the show at 60 episodes, pretty damn close to BrBa's 62), though AMC and Gilligan/Gould never verified Giancarlo's statement so nobody knows for certain. Season six being the ending would definitely make sense to me, though.
Season five has been pushed back to 2020, since they got a late start on the production this year. Probably looking to get back into that February premiere that S1 and S2 had.