That's all the more reason to replay! XD
Kidding aside, the trait system exists for this sake - if you get a bad ending then you unlock a trait to help you get a better ending.
We have plans but we'd rather not reveal anything because that's how we got burnt with VO. After all it's been over 3 years since we released a demo for it and almost 4 since we announced it. In that time most people probably got tired of waiting >_>'