According to a report by Kotaku UK, Nintendo is hard at work on expanding the video capture abilities on Nintendo Switch. For starters, the company's goal is to get games using its properties supported. This means that we could see updates for Fire Emblem Warriors and Mario + Rabbids Kingdom Battle in the near future.
Next to this, Nintendo is planning to make the period you can record longer. This could range from anything between one and five minutes long. Naturally, this would require more space on the system to keep the recording rolling. Kotaku UK says the following about this: ''This would be handled by a Switch firmware update, after which all games with 30 second video capture support would be able to make use of larger recording times without needing to repatch the individual game.''
The report doesn't make clear how long it will take for these changes to appear. At the moment, the focus is on the games and getting the feature supported. It seems likely that future Nintendo titles will support video recording right out of the box.