Would you want an "open world" Mario game? (Updated OP for elaboration.)

[AZWification]

Experimental42 said:
Why haven't they ever made a Mario 64 2 yet? Didn't they already have one in the works that got canned because the 64's addon wasn't doing well?

Now would be the perfect time to bring it back if so.

Yup, SM64-2 was supposed to come out for the 64DD, but that thing was a damn failure and thus 64-2 got cancelled. What's noteworthy is that 64-2 was supposed to be the first 3D Mario game with multiplayer, meaning that Luigi would make an apparence!

EDIT: My bad.. Mario 64 also had multiplayer originally, but it got scrapped..