People expecting the possibility of the Switch version being a combination of the PS4 and 3DS game need to think about it harder. That's 2 complete different engines with different processes and with save files likely being incompatible, or at least requiring some conversion between the two modes. That would go against the instant switching from docked to handheld mode that I've done when playing Zelda. It'd probably require a load time of 1-2 mins in that case. Nevermind I'm sure I read that the PS4 version is a 40GB download, bigger than the 32GB current max Switch cart size, and that's not including the 3DS game and it's assets either.
The Switch game will be one or the other. As much as I'd prefer it to be the 3DS game to ensure a Western version and to play it on better hardware, it's likely to be based off the PS4. Just not ready yet