Complex sentence: It is the first film in the series to not feature the human characters from the first three films, but features a whole new cast of human characters and several new Transformers, including the Dinobots for the first time in the series.
Split into simpler sentences: It is the first film in the series to not feature the human characters from the first three films. As a result, the film features a whole new cast of human characters, and several new Transformers, including the Dinobots for the first time in the series.