Predication about Halloween 2025

I always think myself.... What if Umbra didn't died? She might be died, but her death is like glitched out so she might have a potential is being alive. There's a theory (of myself) that Lord Exo will bring back Umbra to the Halloween 2025. Another thing that I questioned myself... what happened to Lord Sinister? Well, since Lord Sinister has been not returned since 2020, Lord Exo might as well bring him back to haunt people again. This would be a crazy year if the devs bring back these bosses as a revenge. (This is just only predictions btw, not confirmed yet)