I wouldn't do it. It'd be like a dead lover. Don't get suckered into prettying up her corpse on the off chance your opinion of necrophilia changes.
Dealing with 5 year old code is okay now. In 10 years it will cause you pain. It's like going back to an ex after you lose attraction. It never works out and hurts both parties (in this case your users, because you won't maintain it or want to pretty soon)