2001: A Mario Odyssey

Mister Apple said:
It would be cool if they did a Mario game where you alternate playing between Mario and Peach, like in Treasure Tracker.

So you mean the first two Paper Mario games?
But those games are primarily about Mario, and the gameplay is different for each character.
 
 
It still bugs me on the wiki that we can't seem to figure out the color of the Metro Kingdom moons. It went from Bronze, to orange, and now it is cream.

I say it's straight up Brown. I was okay with Bronze because it has a similar color to the Bronze Stars from Galaxy 2. But the more I look at the moon, the more I see it as Brown.
Power_Moon_METRO.png
 
I played the demo at the gamescom and will do it again on the Game City in three days, and for me they are clearly bronze.
 
In the last trailer, a Banzai Bill chases Mario through a lava world, and this bullet bill wears Bowser's top hat - does that mean, Bowser can capture stuff too? Also, in earlier trailers Bowser can be seen throwing his hat in a similar manner as Mario throws Cappy.
 
Maybe Bowser throws it like a projectile. I do want an Oddjob reference.