May 7th: Nintendo officially revealed more information about Nintendo Switch Online, the much-anticipated paid online service for the Nintendo Switch. The service will officially launch this year in September.
Nintendo Switch Online will offer online gameplay for compatible Switch titles, including Splatoon 2, ARMS, and Mario Kart 8 Deluxe. The service will also feature cloud backup for save data, as well as new online features for classic NES games. 20 NES games, including Super Mario Bros. and The Legend Of Zelda, will be available at launch, and new games will be added to the service regularly.
Nintendo Switch Online membership will cost $3.99 USD for a one month plan, $7.99 for three consecutive months, or $19.99 for a full year. A year-long family plan can also be purchased for $34.99, allowing up to seven others to access the account holder’s Nintendo Switch Online service. Non-subscribers will no longer have access to free online gameplay features once the service launches in September, though they will continue to receive system and game updates.
While currently unconfirmed, it is highly likely that the upcoming Super Smash Bros. title for the Switch will utilize the Nintendo Switch Online service. The service will be available for purchase in September on Nintendo’s website or through the Nintendo eShop.
Writer's Note: The information below could potentially be considered spoiler material. Viewer discretion is advised.
An alleged leak thread, posted May 1st on GameFAQs, correctly predicted the Nintendo Switch Online reveal for May 7th. The poster included other potential leaks for this year’s E3 event. However, the rest of the post has not been confirmed in any way.