I respectfully disagree with a bit if the stuff you stated.
There is little to no chance that MP4 is coming before 2019.
I think Donkey Kong is very likely especially since Retro are confirmed not to be working on MP4, and its been three years since they released tropical freeze.
I totally agree with the rest
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.