It's lame how we don't have a good mod for this, I understand this is a challenging request because their are no 3D models (that I know of) of this Zelda. All these shots (pics) are from cut-scenes in BotW. I've seen the other mods using lame outfits and although I love the attempt, I wanted to push the issue and ask for some brave soul to make this a reality.
In order to win the bounty, you should fulfil the following requirements.
The Zelda shown in the pictures (same outfit), over the current Zelda in Smash 4.
This wouldn't be as ridiculously hard as it seems. You could take the in-game model that we do have (white dress Zelda) and use that as a base to remodel what we see ingame. I'm not sure about AnalogFlame's current import because they didn't use the cel-shading from the original model but also didn't give it any proper normals to replace it. Maybe it would be better to start off making a recreation of BOTW Zelda and then re-rigging it onto another character. I like the idea of Sheik like one person suggested. For some people who I think could do it well, Anivernage seems good at human custom models, but I think they're busy with Fire Emblem mods for now.
Honestly I've always thought that that particular design of BotW Zelda makes more sense on Sheik than it does on Zelda. Still is Zelda and all, BotW has a heavy Sheikah theme to it, and it's a plot point that the BotW Zelda is more into science than magic.