Sources close to Jay Leno believe a retirement announcement could be coming soon. The latest rumor claims NBC  is planning to announce in May that the 2013-14 television season will be Leno's last and that he will be phased out and replaced by Jimmy Fallon with a summer of 2014 launch. The move is being made in part because of the sucess of Jimmy Kimmel in his recent shift to the 11:35 p.m. time slot on ABC.

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