Here is an interesting update. Last week, Blizzard released Diablo III on Switch and it seems they have further plans for the system/
The company has now added Nintendo support to Battle.net and will allow you to link your account.
Link your Xbox Live®, Nintendo®, or Playstation Network® account to your Blizzard account to claim your cross-promotional items—such as Tracer in Heroes of the Storm and Baby Winston in World of Warcraft—from the Overwatch Origins, Game of the Year, or Legendary editions. Linking your accounts will also help if you need to reach out to us for support.
What could this mean going forward?