Switch was a smart move for Nintendo to put them in a more positive light after the WiiU. We are still likely 3-5 years out, and rumors about a mid-life refresh (Switch mini/Switch pro) are circulating, but Nintendo is likely already planning their next move for the future as well.
In a way, Switch puts them in a tough place. They are definitely not making as much money as they were when Wii and DS were both wild successes. But a hybrid is a much safer move- little to no chance it would flop like WiiU did, and there's no need to split the first party software between two platforms.
What do you want Nintendo to do? But also, if you were Nintendo, what would you do?