The update comes ahead of a planned Nintendo update for the 3DS that is scheduled to arrive next month. The 3DS update will bring the Miiverse to the 3DS as well as adds the ability to combine eShop balances on both the 3DS and Wii U systems. In addition it will add Network IDs to the 3DS to access the eShop. Apparently 3DS owners will not have to take advantage of using a NNID to combine their eShop purchases and will still be allowed to download software from the eShop without a NNID.
Rumors suggest that another system update for the Wii U is just around the corner, but will likely not arrive till early next year, unless Nintendo has a reason to release it sooner. On the software front, the Wii U is still struggling, but the recent sales boost has helped, but Nintendo needs strong sales for the Wii U this holiday season in order to help get published and developers re-engaged in developing for the console. Whispers suggest that Nintendo expects supplies of the Wii U to be plentiful this holiday season and does not foresee shortages like what has plagued the Wii consoles of the past. The problem is however that the lack of software will likely keep many buyers away.