Complex sentence: In March 2013 it was rumoured by Universal Pictures that a possible Thunderbirds reboot may be released with plans for a new trilogy of films that would have no connection to the 2004 film.
Split into simpler sentences: In March 2013 it was rumoured by Universal that possible Thunderbirds reboot could be released. It was said that plans for a new trilogy of films could be released, it was also said it that the trilogy would no connection of the 2004 film.