Frozen Fever
"Frozen" characters Elsa (voiced by Idina Menzel) and Olaf (voiced by Josh Gad) from the 2015 short "Frozen Fever." Disney

No one could have expected what a phenomenon the 2013 movie “Frozen” would be for Disney, including the creators Chris Buck and Jennifer Lee. Now the duo is tasked with an even more daunting task than they previously dealt with - to do it all over again in the sequel.

Following the successful launch of the seven-minute short “Frozen Fever” in front of each showing of “Cinderella” in March, Buck and Lee say the experience made them excited to dive head first into “Frozen 2.”

“We’re just starting,” Buck recently told MTV News. “Jen [Lee] and I are just getting back into the story room together and throwing ideas around. We have an overall idea, a concept, which I think is a very strong one. I’m very excited about doing it.”

While he wasn’t able to give any details as to what crazy adventure Elsa (Idina Menzel) and Anna (Kristen Bell) get into this time, he did confess that they’re hoping to appeal to a modern audience by getting in touch with the struggles that people deal today. In addition, he said that the story will, of course, focus on the two leading ladies fans came to know and love. He mentioned that the first film introduced two “very strong female leads” and that he and Lee have every intention of sticking with, and expanding upon, them in the sequel.

“For us, Jen and me, it's been so fun to get back in the room and be with these characters again. These characters are part of us -- both for Jen and me. Anna, Kristoff, Elsa, Olaf -- they're all parts of our personality,” Buck told Fandango in a separate interview. “So it's fun to play with these characters again and sort of see where we can go next with them. Just like any characters that you love, to see them grow and to see what happens next."

As previously reported, Disney officially announced its plans for a “Frozen” sequel in March. Walt Disney and Pixar Animation Studios’ chief creative officer John Lasseter dropped the news during a shareholder’s meeting in San Francisco. He revealed that, while working on the seven-minute short, the producers got so many ideas for a sequel that the mouse house greenlit the project.

“We enjoyed making ‘Frozen Fever’ so much and being back in that world with those characters,” he said. “Jennifer Lee and Chris Buck have come up with a great idea for a sequel and you will be hearing a lot more about it and we’re taking you back to Arendelle. We are so excited about that.”

So far, Kristen Bell and Josh Gad (Olaf) have confirmed their plans to return as voice actors in the sequel. However, given their involvement in “Frozen Fever” and the fact that Buck is name-dropping their characters, there’s no reason to assume that the rest of the cast isn’t on board as well.

There is no release date scheduled for "Frozen 2" at this time.