Without 3rd parties support, any console will be as good as dead. Nintendo has large 1st party games, but it is not enough to save a console, if it is enough, WiiU wouldnt die at all.
Only exception will be like Wii whose motion console idea really worked out well, in this case, even 3rd parties dont like the hardware, they will port games to it.
For switch, I dont think a home/handheld hybrid console will work as well as Wii, so it needs 3rd parties.
My Bravely Default CE is for sale, check it out: http://www.ebay.com/itm/Bravely-Default-Collectors-Edition-Nintendo-3DS-2014-/221490881912?pt=Video_Games_Games&hash=item3391e2a578







