"Frozen 2" will not be hitting theaters until 2018, but excited fans are already coming up with theories about the sequel.

One of the most popular speculations about the follow-up centers on the lead character's archenemy, whose powers is said to rival Elsa's (Idina Menzel). As per Christian Today, the villain's powers is said to be fire-based and will prove to be a huge problem for the Ice Queen.

We previously reported about the theories suggesting that the first film's main villain, Prince Hans (Santino Fontana), could return to Arendelle as a redeemed person. With the prospect of a new villain in the kingdom capable of challenging Elsa's powers, Hans could be out of the picture as the bad guy and instead help Elsa and her friends to defeat the new threat to Arendelle's peace.

Another plot theory points at a potential love interest for Elsa. The original film focused on Anna's (Kristen Bell) infatuation with Hans, with the second half of the movie showcasing the princess' growing affection for the simpleton Kristoff (Jonathan Groff). For "Frozen 2," fans are guessing that a new romance will be under the spotlight, and this time, it's for Elsa, Ecumenical News wrote.

Peter Del Vecho, Jennifer Lee, and Chris Buck are developing "Frozen 2" for Walt Disney Animation Studios, Variety reported.

Relive the magic of the first film by watching its trailer below.

Moms Naming Their Daughters 'Elsa'

The widespread popularity of "Frozen" extended not only to kids, but to mothers as well. The Hollywood Reporter wrote that the name "Elsa" returned to the 500 most popular names list for the first time in 57 years because of Disney's 2013 hit animated film.

As per the Social Security Administration data analyzed by the The New York Times, a number of 1,131 newborn girls in 2014 were named Elsa, marking it as the 286^th most common name given to babies.

The name "Anna," meanwhile, didn't have the same fate. While remaining popular, the name of Elsa's younger sister advanced only one spot and landed at the 34^th place in 2014's overall rankings, The Hollywood Reporter added.

"Frozen" grossed $1.3 billion in the blockbuster office, the news outlet noted. The animated film has won the Academy Award for Best Animated Feature and Best Original Song for "Let It Go," which is composed by Robert Lopez and Kristen Anderson-Lopez, Playbill wrote. Other accolades given to the movie include a Golden Globe, BAFTA, Critics' Choice and Producers Guild of America awards for Best Animated Film, five Annie Awards, and four Visual Effects Society Awards.