Didn't they say they were getting into the animated movie business back in like 2011?
Did they ever release anything commercially?
where there even any exceptionally good cut scenes or trailers that came out of Nintendo?
were the shorts mentioned in the OP any good?
I'm pretty sure Fire Emblem had an anime movie/series, but I'm also 99.999% sure that if that does in fact exist, it wasn't from Nintendo.
The LEGO movie already beat them to a Smash Bros concept w/ that twist at the end, but what series would even fit a G Rated(?) theatrical animated release? Pikmin?
I think Metroid could make for a good Space Horror/Thriller Suspense Action flick, but it would likely be PG-13.
maybe something relatively unknown, like Star Tropics? (also PG-13?)