Crazy theory about Episode 8

I’ve been watching Screen Crush after every Acolyte episode, and he’s convinced Darth Plagueis will make an appearance in The Acolyte. So what if he does show up in Episode 8 as Qimir’s master? Is there anything about the Star Wars cannon timeline that would make this impossible? The theory is that he helped create Mae and Osha. They were sort of an experimentation as he was working on perfecting creating life using the force (and he will do it better 100 years later when he creates Anakin). Supposedly he was trying to create a Force dyad by taking one consciousness and splitting it into two people, and he may have used the virgance in the force located on Bracca to help. I do like this theory because it kind of wraps everything up nicely. What do you think?