As part of the Nintendo Switch presentation, Nintendo announced that the Switch would have a new online system. This new system breaks with Nintendo's past by being a paid online system.
"With Nintendo Switch, you will of course be able to enjoy online multiplayer gaming," Kimishima said. "Users will be able to try out Nintendo Switch online services for free during a trial period after launch. Then it will become a paid service beginning in the fall of 2017. We will provide additional details on this paid service and its features on our home page at a later date."
The Nintendo Switch website updated following the presentation with further details. Online is available via your Nintendo Account and will be free for all players until Fall 2017, when its switches over to paid service. The service will include online lobbies and voice chat, with a dedicated smartphone app. A free, limited version of the app will be available in Summer 2017.
Like PlayStation Plus and Xbox Live Games With Gold, Nintendo will be offering a free NES or Super NES game per month, with all games having newly-added online support. This is probably the strongest aspect of Nintendo's new online system and we look forward to seeing what games Nintendo offers.