I guarantee that by Christmas 2018, we'll see a Switch Pro released, with much larger internal storage (64GB-128GB) and possibly a larger screen.

Nintendo loves its incremental hardware upgrades, especially for portables. Switch is technically a portable, so its only a matter of time. As these problems compound and 3rd parties put more pressure on Nintendo to fix this, its going to come sooner rather than later.

For myself, I don't really mind. I buy almost exclusively physical games and in the event that I need to add a micro SD card to play something, I don't really mind.