I don't know how many percent in lost funds Celsius will refund to creditors, but it is still good news that they get something after a very long time, it would surely not cover for their loss, but it is better than a 100% loss. I know it is not all customers that would get a refund, a lot of their customers kept complaining that they could not update and confirm the data in their profile, which is a requirement by the court to get refunded, i don't know what will happen to such customers.
However, this is how processes like these usually ends, with only a handful of people a little bit happy, that is why you should never commit funds to centralized services or lending and earning platforms.