Is it possible that Sidious actually won?
I recently read a theory where s user detailed how Sidious may have actually won at the end of ROS, because he was able to get Rey to destroy him (by deflecting his lightning).... Which is what Sidious wanted from the beginning.
The theory goes on to suggest that Sidious's essence hopped into Rey after she killed him, and is basically hiding dormantly within her, waiting for the opportunity to surface again.
What do you guys think? Agree or disagree?