I think there's too much conflicting evidence to support any of the existing timelines over another... which is why I'm still thinking it could be a new (fourth) timeline.
In this hypothetical timeline, there could easily have been a number of events similar to those in other timelines, which could be what the references in BotW are referring to, rather than the events we already know of from other games.
Also, there was actually a line in one of the memories that reminded me of one of my earlier theories about how a new timeline could have been created... where Zelda proposes the hypothetical situation where Link hadn't become a knight.
I'd proposed an extremely similar theory months ago, after looking back at the mysterious carvings that had been added to TPHD, which I suspected showed two different outcomes, one where Link went with his father to fight, and one where he went with his mother to safety, which could be a split between the BotW timeline (father) and the adult timeline (mother).
In this hypothetical timeline, there could easily have been a number of events similar to those in other timelines, which could be what the references in BotW are referring to, rather than the events we already know of from other games.
Also, there was actually a line in one of the memories that reminded me of one of my earlier theories about how a new timeline could have been created... where Zelda proposes the hypothetical situation where Link hadn't become a knight.
I'd proposed an extremely similar theory months ago, after looking back at the mysterious carvings that had been added to TPHD, which I suspected showed two different outcomes, one where Link went with his father to fight, and one where he went with his mother to safety, which could be a split between the BotW timeline (father) and the adult timeline (mother).