We already know that Miiverse will be accessible via the 3DS by the end of 2013 and it has also been rumored by the same source that the 3DS would be getting an NNID account system update by the end of the year as well.
Now, however, Emily Rogers, a Nintendo insider, is confirming to us that we should be expecting both the Miiverse and NNID update very soon this Fall.
3DS getting Miiverse/Nintendo Network ID firmware update this Fall. Won\’t be too long of a wait.
— Emily Rogers (@Emi1yRogers) July 18, 2013
We\’ll be sure to update you on this story once we get a confirmation.