I've been burned by IGN before so take this with a grain of salt, but IGN Portugal claims they have a new interview with Aonuma coming that includes confirmation of
and alternate endings.
Google Translate:
Epona
Google Translate:
One of the interesting things that the famous producer / director of the series, Eiji Aonuma, revealed to us during a recent conversation in Munich, had to do with the fact that there are at least two endings for the adventure in Breath of the Wild.
It's not as if Zelda suddenly began to offer us alternative choices or paths, but in Breath of the Wild, there will be the normal ending, then another, only achievable if we meet certain type / number of conditions:
"There is an alternate ending if you meet certain criteria. If you do a few things, you may see a different ending," Aonuma revealed.
Do not miss the full interview with Mr. Aonuma soon here at IGN Portugal, where among other things confirmed the presence ofand introduced us to a golf-style mini-game that uses an item called Stasis RuneLink's legendary companion Epona