Seems like Aonuma might have let news about a Skyward Sword remake slip.
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It makes sense due to Skyward Sword being the last 3D Zelda game that's yet to be remade in HD. For this to happen I think they would have to change up the controls a bit due to the motion controls working differently on the Switch then the Wii.
Go Nintendo wrote:Could The Legend of Zelda: Skyward Sword be heading to the Switch? Comments from Nintendo's Eiji Aonuma have fans thinking a port is in the works.
Aonuma was part of a Legend of Zelda concert taking place as part of Nintendo Live, and during the concert he made this comment to the crowd.“I know what you’re waiting for – Skyward Sword for Switch. Right?”
The fan went nuts over that comment, but there was no follow-up from Aonuma. Was it a joke, or a tease of something in the works? We'll just have to hang tight and see what happens!
Source
It makes sense due to Skyward Sword being the last 3D Zelda game that's yet to be remade in HD. For this to happen I think they would have to change up the controls a bit due to the motion controls working differently on the Switch then the Wii.