RamboBambiBambo
RamboBambiBamboBingoBongoBoiyo
Simply put, she could be the one who maintained their home in Hateno.I think the problem is that AoC is supposed to happen prior to the events in BotW. Although it actually is the same but with different outcome thanks to Terrako. Having Linkle in it would be a bit odd because what would happen to her because she's not mentioned in BotW at all. They would have to come up with a solid reason for her not to be in BotW or not even be mentioned at all.
The house that we purchase in BotW would simply be Linkle's house. And sadly, after a century of being asleep; Link doesn't recall his sister or realize that the home he bought was their childhood home.
Adding something touching that could be given an emotional scene for players to witness if they sleep in their bed in Hateno Village; Link having a dream about their childhood and about his family. Each dream advancing further through his childhood and into adulthood, showing that he became a Knight while Linkle a crossbow-wielding Huntress.