I've thought about it, and I really feel like Sylux may not be THE main villain the whole time. It's mainly just a hunch based on how Tanabe has talked about his plans with him before as well as my personal guess that their transportation to Viewros was an accident and not him pulling some 4D chess to get hit on purpose.
I think he may end up teaming up with Samus due to a common goal of wanting to get off the planet and being a temporary ally feels like the best way for them to delve into his backstory and motivations. He's a very unique entity for the Metroid franchise as he's not a giant alien monster, an evil clone, or a giant supervillain bird. He's an equal to Samus who's blatantly weaker than her and I think there's a lot of interesting room to explore a character like that in this series.

>>712545504
Probably in the next week or two along with a Metroid Prime 4 release date, Nintendo has sucked at making trailers or promoting their games recently.