Let's not get crazy now. It's got another fiscal year and then I'm sure those devs will start putting in work for the switch, if they haven't already. The 3ds is ancient, even with the new upgrade, do you really think they'll waste resources on a 2D Zelda on the 3ds, when they can just use the current engine on the switch? They already have a crude proof of concept, reusing BotW assets and just worrying about a story and translation would be way easier than "reimagining" 2d Zelda for the 3ds again. Plus, who wants to go back to a zelda game without physics interaction?