I really hope it is Super Mario 64, but the chances are very low...Not because of technical reasons, we have Minecraft today which works fine, but because Nintendo knows well how to make a maximum amount of money with the minimum effort. The most profitable game is MK8D where they have almost done nothing.
Why invest into a more complicated Super Mario 64 mainstream builder when they can still sell the game at 10M+ with ease with a few superficial dlc.
The have a tendency to do that, but I wouldn't call SMM2 low effort. They added way more than I thought they would.