If you buy LEGO City now, it will have finished loading by the time the Switch one comes out.
(But seriously, it's one of my top Wii U games, love it to bits, but oh god the loading is painful)
So no Nintendo sale in NA?
To add to this, Zelda Picross, whilst indeed the best value, has a very different control scheme that absolutely killed it for me. If you're gonna tuck into Picross, make sure you play it FIRST to minimise the impact of the change.
Worth noting that this is only an issue for stylus controls apparently, I use d-pad and buttons and I'm pretty sure it's the same as the rest.