It's November 21st 2016. The NX is out and more powerful than the PS4. Are 3rd parties on board?

[NobleTeam360]

I don't see why they wouldn't be if it's 300 bucks and more powerful than PS4. 

Edit: Yes I think 3rd parties will be on board at the begining but if the consumer fails to buy the NX then I can see 3rd party support quickly dropping like the Wii U. In the scenario you described I don't see how it could flop though.