Yay... I'm sure Zelda Williams will come out as the winner.
My predictions, roughly 24 hours before the event. Smash (duh), Animal Crossing, Fire Emblem. Splatoon 2 and Xenoblade Chronicles 2 DLC. Yoshi I think will be on standby for potential internal delays, while Pokémon core will be Nintendo's main title for E3 2019. For anything else, I'm just waiting to be amazed.
I really liked the part on Mark of the Ninja Remastered.