I checked with my in law again today. I didn't learn anything juicy but he told me with a smirk that while a lot of people are excited for it now not to get hopes too high, there might be some quirky thing left that could deflate a lot of the hype in typical Nintendo fashion but he is such an anti-Nintendo fanboy I just don't know what he could have meant.
But he did say they are in act making game but the reason they are not on the list of developers is because it is not a launch game and other things are not finalized just yet. Nothing specific but he said there is still a very Nintendo-esque reveal that could be make or break. I asked him what kind of game they are working on, he usually tells me what games he is working on but he said nope its a secret and its nothing to get excited over but the fact his studio never made a game for Nintendo before, has openly mocked them and isn't mocking this coupled with active enthusiasm suggests there is hope. The bit about one more final reveal that is make or break though could be anything.
When they showed his team the Wii at first he said sure it could work but then that hype deflated from a dev standpoint when it got to the guts. He said the guts in Wii were terrible their studio likes to push systems. So I asked him does that mean the Switch is powerful and he said with a wry smile, wait and see, its no PS4 Pro is all he said. But whatever it is the fact they are making a game for it is telling to me. He also said he has friends at other studios also looking at it, nothing specific, but he told me all about the PS4 about 6 moths before the reveal, nothing special there either just that their game was A. and what they hoped to do with it.
That is about it, he has never been a good source for Nintendo stuff because his company I won't say hates Nintendo but they dismiss them. Take it all however you wish. All I know for sure is he said he will buy one and he hasn't owned a Nintendo console since the SNES.
I have a friend in Microsoft also who does coding for their Windows division, he said that there are already rumblings withing that MS is going to respond with something around E3. I suspect Sony isn't in a position to do much but ride the VR train out and throw everything into PS4 Pro. MS has some room for changes because well they have the Surface and might try to revive their mobile phone plans, that isn't from anyone just me speculating. I couldn't get specifics because all he said was it's rumblings right now just that people in the company are talking about a plan of attack that might make things more interesting come next year.
Between MS being hell bent on taking over the living room, Sony gradually becoming Sega, and Nintendo just refuses to die, I think the next five years are going to go to Nintendo.