Official online functionality for the Wii U and 3DS may be no more (as of today, 9th April), but unofficial Nintendo Network replacements are already out there. What's more, the fan-made server substitute Pretendo Network is now available even for those who don't want to hack their Wii U.
In a blog post released today, the brains behind Pretendo marked the launch of 'SSSL', a "private SSL exploit for the Wii U" which "allows users to connect to Pretendo Network from a stock Wii U, with no homebrew or custom firmware at all."
According to the statement, a DNS change is all that is now required to get the network replacement up and running on a Wii U, allowing anyone who had previously resisted installing Homebrew the chance to get in on the action. Full set-up instructions are available on the Pretendo Network website.
This new connection method relies on a bug found in the Wii U's ver. 5.5.5 SSL module and the Pretendo team claim they have known of it for a while but didn't want to make the information publicly available in case it should get patched as a result.
The online server recreations will not work for titles which utilise their own SSL libraries (Pretendo lists WATCH_DOGS and YouTube as examples) and the team stated on Twitter that the hackless method is only available on Wii U, with no such exploits being viable for the 3DS.