People both really want and really think Zelda: Breath of the Wild 2 will feature co-op. Interviewers are trying their best to get that info out of Nintendo, but not surprisingly, everyone is tight-lipped. IGN’s Samuel Claiborn gave it a shot in an interview with Eiji Aonuma, and you can check out their exchange below.
IGN: "I know for a long time, people have wanted to play as Zelda, and there have been some games where you get to play as Zelda a little bit. It looked like Zelda and Link were hanging out a lot together. Do you think this is going to be the game in which we get to play as Zelda, maybe as a co-op game?"
Aonuma: "It's kind of interesting that you bring that up, because in Breath of the Wild, you see Zelda and Link together often too, so to go straight into the thought of co-op is very interesting to me."