I have been seeing a lot of wishful thinking about Nintendo's next hardware being third party friendly as some like to call it.
STOP DOING THIS TO YOURSELVES. They will never be that because their business model doesn't include that.
Even when they had the most successful consoles, some of which had plenty of third party games, they were NOT "third party friendly". Examples in clude the NES, SNES and Wii.
From what Nintendo has stated recently that is not going to change. Miyamoto recently revealed that Nintendo's internal studios, remember this, have begun design work on the next hardware. Not too suprising really. However, a lot of people are feeling that this will be "third party friendly" due to unconfirmed rumours.
You know what is confirmed? That Nintendo will be consulting their own internal studios and not third party publishers. So stop doing this to yourselves. Just wait to see what it turns out to ve and judge accordingly.