That being said, you’ll still only be able to get it via emulation on a hacked console, so don’t expect to ever get this content with Nintendo’s blessing. Unfortunately, at the moment Second Wind is only being developed for the Wii U version of the game, but a Switch version could be on the horizon afterwards.
However, beta versions are already being shared on the project’s Discord server and plenty of gameplay footage is available. The mod is still in development, currently sitting at about 60% completion, with a team of over 50 people contributing. Second Wind is compatible with the CEMU Wii U PC emulator, but you’ll also need the Breath of the Wild Cross-platform Mod Loader for it to work. Unfortunately, not just anyone can get their hands on this new expansion.