It'd be awesome to have a Nintendo amiibo trading card game. Though let's not pretend kids would only buy cards for a game. I know I'm not the only one who collected a shit ton of pokemon cards as a kid without ever once actually playing the actual card game with them, or even knowing the rules
Don't know if they'll go that far for the cards.
Pokemon was an absolute monster having its own popular animated series, handheld games in playgrounds, and theatrical films. Nintendo is in a different situation now so that's most likely not going to happen for Amiibo cards.
They just need to at least make them appealing (few holographic varieties) and keep them in stock.