The physical ability to do it isn't the problem. As Robert Harris said, the films are pretty well protected in that there are sep masters for at least two and probably all three. The problem is that no one can get at them right now due to certain business conditions, the main one being that George Lucas has the legal right to block people from getting at them. This may or may not change in the near future but it will change in the distant future, and because of that it might come out in between those extremes (i.e. in 15-20 years, after Lucas dies, but maybe even less). The situation is bad but not hopeless.