Currently Online 
Soundwave on 05 September 2015
Backwards compatibility with a failed console that is probably going to finish in the range of 17-18 million consoles and a tiny library of games should be right down near the bottom of Nintendo's design priorities.
What did Wii backwards compatibility (a much more popular system) do for them this gen?
Fact is it's a feature the overwhelmingly majority do not care about and accomodating it means you have to make compromises to your hardware design which can hinder performance or force you into choosing hardware components at a higher cost (because no one uses the damn tech any more) for no performance gain.
It's lose-lose-lose all around.
