From what I understand, this emulator effort has received $23k in funding:
http://segmentnext.com/2017/03/27/zelda-breath-of-the-wild-pc-emulator/
Definitely looking forward to this unofficial PC port. Breath of the Wild is a game that deserves a modding scene. Currently thoroughly enjoying my playthrough on my Switch but I know that through modding the game can only improve.