Has any megaleak/interview/datamine revealed any explanation for the white or empty door in the Super Mario 64 remake?

Obviously, there have been countless rumors and myths but is there anything solid. The only thing I can imagine is that the game was going to have another character or that the door belongs to yoshi.

Source: https://www.deviantart.com/artmadebymoi/art/Princess-Daisy-Bicep-Heart-Trend-1409324752

This was one of my favorite Wii Games that I'd play with my friends and family. I loved playing and replaying it for hours and hours!

Thank you to those who gaveme their suggestions! I appreciate you guys and i had fun coming up with these emblems!

Characters in order are: Mouser, The Ruined Dragon, Rex, Heave-ho, Plessie, Vivian, Tatanga and the baby Yoshi's from NSMBU

If you really wanna, you can keep giving suggestions and I'll draw them another time! (Might be a while before you see them tho lol)

Also, just wanna say that i didn't draw the bowser emblem in the ruined dragons thing, i just grabbed it from google

Source: https://www.deviantart.com/donkeyshspittle/art/SHOWTIME!-1125971849

He ain't fat plumber

I miss the matching rainbow mohawks

Every time I see people saying they should add rpg characters, they always say Vivian, geno, and fawful. And while I can see an argument for the other 2, idk why people say Vivian when goombella was way more important and prevalent (same argument could be made for starlow over fawful) so if they were to add rpg characters, why would they add Vivian over goombella?

I think it would work the best as a DLC pack. I'd also rather have RPG characters than Isabelle or Link in Mario Kart

Their physical appearances are nearly identical, but who is the more powerful character? The father, or the son?

Feel free to include any form of strength you want for your arguments; political/dictation power, physical strength, Magical capability, endgame potential, you name it.

(Picture source thanks to user Beeelake1209.)

Yes they have 2 faces :) :)

The head and hands were printed by Escrubby and hand-painted by me! This was a bit of a simpler custom but I'm still happy with how he turned out