Definitely, Elsa will be part of Frozen 2. Elsa is actually one of the characters people are actually anticipating to see in the movie. Idina Menzel will continue to act as Elsa. Other characters to be expected are; Kristoff, Anna, Olaf, Queen Iduna. Elsa has some magical powers that can be used to perform so many things.
A perfect example of the demonstration of her power was when she tried to freeze violent waves so as to run across it. Elsa is acting a character that does not allow her to have a boyfriend despite the fact that she has the power to have it easily.
Even, the calls from critics and lovers of the movie won't change anything as Elsa will still continue to maintain her previous role; there is no provision for her to have a boyfriend either in Frozen 2. Frozen is expected to be released to local theaters on November 22th, 2019.