I'm not worried about Mario.
If there's a franchise I can see being more simple looking despite the hardware its Animal Crossing, but I'd probably think that regardless of this shared library stuff.
However, I'm definitely not expecting franchises that appeared on Wii U to get visual downgrades going to NX home console.
Here's hoping! I imagine they can't make a game that looks less impressive than 3D World (which is a nice looking game but it doesn't impress)
3D land was a very nice looking game but I think 3D World suffered from the multiplayer aspect. The character models for the playable characters looked very plastic-y and too simple likely to allow for 4 players+cherry power up at the same time.
I'm pretty sure a game like Pikmin 3 would work and look nice on the handheld. Not sure if the screen is too small, but they can probably make it work more than on the 3DS.
Hyrule Warriors wasn't much of a looker in the first place, but it'll definitely come back. Maybe more stylized like the 3DS game to fit the Zelda franchise better.
Any platformer would likely translate very well to the handheld with the likes of DKCTF and Yarn Yoshi. Maybe without the fur effects.
I wonder if Bayonetta is doable, seems less intensive than Zelda U but it relies on higher frame rates with a lot going on the screen.
If Nintendo has anything more ambitious in mind they can either wait for a new handheld revision or keep it console exclusive.
I'm not sure about handheld exclusives (there wouldn't be much of a point), but maybe console exclusives if the game's concept can't be scaled down.
Yeah, I imagine the smaller price tag should be enough of a selling point for the handheld.
Anything they give the console could be added into newer version of the handheld such as new virtual consoles (Gamecube/Dreamcast)
I do wonder if they should release revisions often in order to keep sales up and keep hardware moving forward.
Could be one ever other year for the handheld. Right now it's one every year and a half (3DS>3DSXL) so maybe they can release a slight revision every year and an update the following one. Not sure, probably not best to wait too long and have the technology age quickly like 3DS