Yes, the release of the Wii U a few years ago turned out to be a failure, and the sales of the 3DS is dropping off. They have announced their new console, the Nintendo NX, but have released next to no information about it (people don't even know if it's a console or a handheld).
Here's an article about it written before Pokemon Go came out: http://www.ign.com/articles/2016/04/27/why-nintendo-is-in-re...