In fact, Weirdworld has commented on Bailey.
He didn't say anything specific, but he did mention that the game remembers if Bailey is alive or not.
He also said that if he chose to do so, she could still have a role in the story.
So nothing is confirmed or disproved, but there is a chance...
And personally, I think Bailey is a pretty unique case.
She is stuck between several worlds.
Like the MC, Bailey was (in a way) transformed into Superhuman by a monster, but it didn't happen until a few minutes after her death (which is not THAT bad, the brain was probably not damaged yet) and it was done by monster that wasn't even a complete monster yet. So Bailey is part dead, part alive, part human, part monster, and there's a LOT OF corruption in her. I personally think that no part of her being is strong enough to take control and that keeps her balanced. That's why I think she's quite unique. If the MC could remove her corruption and repair her broken mind and merge aspects of her chaotic body, she could be quite a powerful hybrid.