So I have a Theory for where the location of BotW takes place in the timeline, Either after Adventure of Link, or Four Swords/Hyrule adventure
Let me explain, It's essentially impossible for it to be on the adult timeline for multiple reasons, in the adult era timeline, a hero never shows until WW, in WW the master sword is sealed in a built up temple of time, the Hero of time was still remembered in WW when the great flood happened and many still remembered the story of what happened (or so I may be assuming) and it cannot be set after WW, but those reasons are obvious so i won't go into detail. Oh also, we know now that Link has been asleep for a very long time in BotW, so if it was the adult era timeline Hyrule would have been destroyed by the ocean or still under the ocean.
It's most likely on the child era timeline simply because the mention of the provinces and how wide spread Hyrule once seemed to be in BotW. Also the master sword is shown to have been sealed in a grove, which it was in TP and at the end of TP.
I feel it also can't be prior to TP because of the Hero's Shade, in between OoT and TP there were no worthy descendants that he could teach his Swordsmanship to until TP link, so I feel that TP link was the first Reincarnation since OoT Link in the child timeline. Now, Ganon was also killed in TP and so far in the timeline he [Ganon] gets reincarnated in Four Swords adventures and is sealed away. We know something happened in BotW's history for Ganon to become Calamity Ganon, like forcing his way out of the seal or something
Now I also believe it could be set after Zelda II, considering the official timeline states that Ganons revival was prevented, but again for how long and in what way? And could something have happened to cause link and Zelda to put themselves to sleep for the presumably 100 years in BotW.
Also the biggest clue to it being in the fallen hero timeline is the grove that we see the rusted master sword in looks way more like the one from a link to the past, though that's far fetched and less likely.
Those are just my two theories...Oh and it cannot be anywhere before OoT, because so far, every Ganon is either a reincarnation of OoT Ganon, or OoT Ganon himself, and we don't see ganon anytime before OoT on the timeline, and considering it's pretty much established that the Hylians knew of ganon prior to BotW and the shieka tech, it's unlikely it's before OoT
Let me explain, It's essentially impossible for it to be on the adult timeline for multiple reasons, in the adult era timeline, a hero never shows until WW, in WW the master sword is sealed in a built up temple of time, the Hero of time was still remembered in WW when the great flood happened and many still remembered the story of what happened (or so I may be assuming) and it cannot be set after WW, but those reasons are obvious so i won't go into detail. Oh also, we know now that Link has been asleep for a very long time in BotW, so if it was the adult era timeline Hyrule would have been destroyed by the ocean or still under the ocean.
It's most likely on the child era timeline simply because the mention of the provinces and how wide spread Hyrule once seemed to be in BotW. Also the master sword is shown to have been sealed in a grove, which it was in TP and at the end of TP.
I feel it also can't be prior to TP because of the Hero's Shade, in between OoT and TP there were no worthy descendants that he could teach his Swordsmanship to until TP link, so I feel that TP link was the first Reincarnation since OoT Link in the child timeline. Now, Ganon was also killed in TP and so far in the timeline he [Ganon] gets reincarnated in Four Swords adventures and is sealed away. We know something happened in BotW's history for Ganon to become Calamity Ganon, like forcing his way out of the seal or something
Now I also believe it could be set after Zelda II, considering the official timeline states that Ganons revival was prevented, but again for how long and in what way? And could something have happened to cause link and Zelda to put themselves to sleep for the presumably 100 years in BotW.
Also the biggest clue to it being in the fallen hero timeline is the grove that we see the rusted master sword in looks way more like the one from a link to the past, though that's far fetched and less likely.
Those are just my two theories...Oh and it cannot be anywhere before OoT, because so far, every Ganon is either a reincarnation of OoT Ganon, or OoT Ganon himself, and we don't see ganon anytime before OoT on the timeline, and considering it's pretty much established that the Hylians knew of ganon prior to BotW and the shieka tech, it's unlikely it's before OoT