In reality, they'd probably move to smartphone titles. And after experiencing Miitomo, that's probably what nobody would want to happen.
Yeah, no way they are moving to the money-drain that is PS4-development when the smartphone market is so much cheaper to develop for, and also heavily populated by customers Nintendo was able to reach just a few years ago. A Nintendo that doesnt produce their own hardware, will probably be a Nintendo that also doesnt produce the games we love the most about them anymore.
Nintendo announced too many things to investors to maybe keep them happy.....that now look to be way ahead or hardly in the oven for when they said it - Nx and QOL which were first talked about more than a fiscal year ahead.
It sounds like a schoolboy exaggerating why his homework was not done to a teacher.
They will be fine though, mobile will sell allot.
To take the last thing first, Im sure they "will be fine", but the Nintendo we know and love wont be fine if mobile becomes their primary income method, because it means there is no longer any point for them to produce stuff like Metroid or Pikmin og Splatoon on the consoles. This might be a profitable Nintendo, but it wont be the Nintendo that we, the fans, know and love. And about the investors, I dont think they announced it to make the investors happy. To me it seems that a big number of their investors actually wants Nintendo to drop hardware and go completely mobile, which is what they ended up doing partially. They announced that there was a new console coming to make it clear that they where not conceding completely. Basically it was the mobile initiative that was to make shareholders happy, not the console announcement.