Complex sentence: He would maintain the role until Jim Cummings replaced him in 1988 for "The New Adventures of Winnie the Pooh" and also took over most of Holloway's other voice roles, including Kaa in "Jungle Cubs" and "The Jungle Book 2".
Split into simpler sentences: He would maintain the role until Jim Cummings replaced him in 1988 for "The New Adventures of Winnie the Pooh". Cummings also took over most of Holloway's other voice roles, including Kaa in "Jungle Cubs" and "The Jungle Book 2".