It is settled for at least another generation at least. What this decision did today is simply wink to would be racialists who want to maintain there racial admitting practices. It is telling them not to be so obvious. It tells them not to have formal "point" systems, or strict guidlines written down somewhere in admittance office guidlines and internal memos. In short- it is telling them to keep their quotas verbal and unofficial. That race can still be a "factor" is all that matters in this decision. The degree of the "factor" is anyone's guess and the court just made it easier for Colleges and Universities to hide these practices and make future litigation against them almost impossible to bring to court much less to prove and there will be virtually no written policies, guidelines, or procedures to bring into court. This actually has made "affirmitive action" far more entrenched.
This was a deeply corrupt and cynical ruling.