Do you think they will be impressed when you contact them about this? Nintendo doesn't care for customers anymore and never cared for the Wii U since it didn't sell well.
I'm always happy to see people making the most of older devices instead of going for the "latest and greatest".
A full-fledged media player for the Wii U, not vWii would be an awesome thing to have. But it would take some developers, who don't think: "Who cares? There are 1000s of better/newer devices!" For the majority interest in such things faded away… since every BS "smart TV" can do such things now – opposed to when the Wii (or the first XBox) got unofficial software.