It won't be a very Direct unveiling.
http://www.nintendoworldreport.com/news/47105/nintendo-switch-online-details-to-come-in-early-may
Details about the Nintendo Switch Online service will be hitting very soon.
As part of a shareholder presentation today to coincide with the release of their annual earnings, outgoing Nintendo president Tatsumi Kimishima reconfirmed that the service would have a September launch, and details would be made available in "early May".
The details will be given at least in the form of updates on the various Nintendo regional websites.
This is the big unknown, the part that if bungled could significantly alter the public's perception of it as a product.That’s a bit dramatic. Online doesn’t take away Switch’s main gimmick which often leaves people without an internet connection anyway. Nintendo has been bungling online for generations yet it still launched hardware that’s selling without a clear online strategy. As far as public perception, Switch as a whole will be fine even if Nintendo’s online plans end up as subpar as most are expecting. It is frustrating when Nintendo doesn’t take advantage of instances when it outplays the competition. Without a solid online strategy, Switch will still be great while leaving the feeling that it failed to reach its true potential.
I want cloud saves. Is that asking too much?
Nintendo's waited too long to put up a paid online service that's mandatory on Switch. At this point, the most they can get away with (especially with the current Online offerings on Switch) is a PS3-era PS+ style service, where there are perks for signing up for an additional service but it isn't required for online play.