Sad news indeed. Our thoughts are with Marianna's family and friends. Personally I feel that it would be inappropriate to keep her name on the register. Perhaps her profile should be moved to the Hall of Fame.
This is very sad news. For someone so beautiful and talented to pass away, it just breaks the heart. It's one thing for celebrities to die from drugs (which are self-inflicted), but cancer is the horrid hand of chance (or fate if you believe in a higher power). I wish nothing but the best for her family and friends in these trying times.
As for the character ... Hacksaw has already emailed me about the matter. He doesn't want to write for the character any further and who can blame him. We'll figure something out in way of a tribute. I definitely like the Hall of Fame idea. May Marianna rest in peace.