Director Guillermo del Toro (L) Poses With Cast Member Charlie Hunnam At The Premiere Of 'Pacific Rim' At Dolby Theatre In Hollywood
IN PHOTO: Director Guillermo del Toro (L) poses with cast member Charlie Hunnam at the premiere of "Pacific Rim" at Dolby theatre in Hollywood, California July 9, 2013. The movie opens in the U.S. on July 12. REUTERS/Mario Anzuoni

After its massive success on the box office, "Pacific Rim" returns to the big screen with its second instalment, with two of the film's original characters. In one of his recent interviews, director Guillermo Del Toro revealed that "Pacific Rim 2" is taking a different direction, which is why some of the fans' favourite characters are not going to join the upcoming movie.

"It's a few years after the first one," the "Hell Boy" director told Haleigh. "It is the world having been freed of Kaiju, what happens to the world after -- what happens to the Jaeger technology once the Kaiju are not a threat. It's quite a jump."

Now that the movie is taking a different path, the first two actors who are confirmed to return are Charlie Day as Dr. Newton Geiszler and Burn Gorman as Dr. Hermann Gottlieb. Picking up a few years after the events that lead to the war between Kaijus and Jaegers, "Pacific Rim 2" is more about science, as Del Toro admitted that he loves writing for the roles of Day and Gurman, including Ron Perlman's character Hannibal Chau.

The film will also feature different type of robots that offers a different adventure for the cast in a Kaiju-free world. With no wars to fight, the Jaeger pilots are taking a sabbatical, which means that "Sons of Anarchy" star Charlie Hunnam may not reprise his role as Raleigh Becket.

But since the film is still in development phase, it is too early to tell whether Hunnam is not joining the cast or whether he will be donning the Jaeger suit again. The Mexican director also admitted that there will be a lot of Jaegers for the second instalment of the movie. Since there is no definite news about Hunnam involvement, there is a possibility that he will still return in the upcoming installment.

Meanwhile, Hunnam recently ended his seven-year run with "Sons of Anarchy" and is heading for a bigger project with British director Guy Ritchie. The Hollywood hunk is set to play King Arthur after playing Jax Teller in the FX biker drama series.