Draco's potential:

1) By now, Draco is very sorry. I believe Voldemort gave him a real Dark Mark, just to punish Lucius. Voldemort expected Draco to die on his first assignment.

2) Draco loves his mother and she loves him. They will do what they can for each other.

3) Narcissa is not a death eater. She is just married to one. If she beleived there were a way, she would happily help with taking Voldemort down for the sake of her son and husband.

4) Dumbledore died to protect Draco. That should be worth some serious protection.

Using my imagination, I can see a number of possibilities.
Yes, I believe Draco will turn around, eventually.