It can take a long time from infection to death. There are better treatments now and maybe the most vulnerable are already dead, so the death rate is likely to be lower but don't be surprised if it starts going up again. I don't think it should be all about the death rate though. We have no idea how damaged people that end up on oxygen or on a ventilator are going to be. This is a new virus, it can damage the lungs and vital organs and does strange things to blood. Hopefully people can fully recover but there are already reports of permanent lung scaring, so I still think this virus is best avoided.