To be fair though, the storylines being "open for later" is a pretty big reach considering they said themselves they initially had no plan to bring them back, especially not "immediately" but due to fan's desires they brought her back.
The Hard Mode dungeons have absolutely zero storyline relevance besides being related to an earlier dungeon which in itself had it's own story - Tell me, where's the story AFTER we leave the dungeon? :p It's almost like they forgot to add the closing part of the hard mode dungeons.
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