Thread:Varg2000/@comment-24199126-20150130132615/@comment-5189655-20150130151533

I believe what they're basically saying here is that they're just creating an alternate continuation that does not affect the basic storyline of the original film or any potential follow-ups like the upcoming short (as is the same case with books which are alternate continuations). As they said, they're not doing the sequel, but they are doing an alternate continuation that has its basis on the established world and history of the original film.

And yes, I'm aware the former Queen of Arendelle is named Gerda in the show instead of Idun, but really, I don't think the former King and Queen's names are very well-known, thus I don't believe Kitsis and Horowitz knew their names either, believing they were filling in some blanks. Either way, OUAT's Frozen-arc is a major/popular part of the franchise.

While, yes, including only an article regarding season four and the last episode of season 3 could come across as a bit confusing, unless you provide links redirecting to (let's say) the Once Upon a Time wiki for the missing details which gives the background to the established world of OUAT.