Ignoring aesthetic differences, and assuming BOTW/TOTK follow the Downfall timeline:
Is this Ganondorf & his
sealed state one & the same from OOT with the hero falling? Is the past being depicted here all the way back to OOT, with this being Ganondorf's first emergence within the DT? (FWIW, I believe BOTW's 10,000 years ago & TOTK's mural past are two different times).
I think the prevailing sentiment is to not mix the two; Ganondorf was sealed after the hero fell in OOT. And then at some other later point in time (still far in BOTW/TOTK's past), the sealing depicted in the 2019 trailer happened.
But what if they're just telling that story now. BOTW & TOTK trailers have now proved that Ganon can emerge while Ganondorf remains sealed. Let's assume that applies to all previous Downfall titles, to the extent that OOT Ganondorf has simply been sealed this entire, while ALTTP, OOA/S, TLOZ, AOL were just Ganon emerging in a similiar manner to BOTW.
Meaning the "past" that will be shown/explored in TOTK is just OOT post Link's death (but aesthetically reimagined).
I can see the resemblance between
Baskets and OOT Zelda, aside from skin tone. I don't know how to reconcile Rauru being a goat/bunny though.