Im not sure about the rules with championship rings, but isnt it possible he would still receive one if the Nets won?
Not sure here too about that but in my own view, since Aldridge is part of that championship season, he will receive a ring. And for let's say, the Nets will be a champion instead next season, then no ring for Aldridge unless for a recognition.
Sad to see that he never experience being a champion and this season gives him a high chance of achieving that but unexpected things happened.
The fact tha he retires, meaning he is not anymore part of the team, so I guess he will not anymore get a ring but just a recognition for his contribution this season, I guess that woul already make him happy and hopefully he will stay positive even with this condition he is having now.
People gets old, people gets unhealthy, but he should not forget that he was a great contributor to any team he is playing when he was still healthy.