The researcher’s footage that was discovered in Canalave Library has been restored! The Pokemon he spotted are Hisuian Zorua and Zoroark.
Both are dual Normal/Ghost Pokemon, making them the first Pokemon to have this type combination. They have three immunities to Normal, Fighting, and Ghost, they’re resistant to Poison and Bug, and they’re ironically weak to their original type, Dark.
The researcher also calls the camera — or whatever he’s holding — a “strange device.” This acknowledges that it’s indeed out of place in this time period.
The YouTube description also mentions Professor Oak:
A few days ago, a researcher uncovered some mysterious footage of the Hisui region. Professor Oak looked through all of your findings and was able to restore the video to reveal Hisuian Zorua and Hisuian Zoroark!
Hisuian Zoroark seems scary…but it also appears to be protective of Hisuian Zorua. What else can we uncover about these Pokémon?
That restoration software is quite the miracle!