So I guess this is a win for Grayscale already and we might see eventually SEC going to approved spot bitcoin exchange traded fund (ETF) in the future.
Their application would be reviewed like the other applications, and it can also be rejected, the fact that they won that case doesn't increase their chances of the sec accepting their application, it only allows them to be able to convert GBTC into a spot etf if their application is accepted.
Although they will have to go to the process of reviewing the application again, but perhaps the chances could be good that we will get an approval and it could set a precedent as well as there are several other asset managers, including BlackRock who also filed for similar ETF.
Some bitcoiners believe that it is now a matter of when and not if, but they have to wait for the decision of the sec. The sec already missed the first deadlines for awaiting applications, and the second deadline for many of the applications is this month. There is a topic for spot etf discussions:
https://bt.irlbtc.com/view/5465517.msg62789444#msg62789444