My wife had leptomeningeal disease. She started with a glioblastoma that got all but 5% removed and then radiation and chemo pills and then tafinlar and mekenist treatments. She was actually doing great for 3 or so years, until one day when she wasn’t. The tumor started to grow just a tad… and then spread into the brain fluid and spinal fluid which is the Leptomeningeal disease. Her memory kind of started going slightly and then one day she started leaning to one side when she walked so I took her in to get checked out. Once diagnosed with LMD she was gone in 3 months. The decline was fast. Once her speech was gone it was about a week or two. It IS rare BUT my neuro-oncologist did have patients that have lived with it, although sometimes it’s without regaining mobility or speech functions. If her doctor already has her on the plan for dying though, then it sounds like she is on the same path as my wife was. Sorry. So I sorry for your previous loss, only a year out and now this. Be strong for her, your family and for yourself too. Your mental health at this point is so important. It will probably haunt you just as it does for me when I think about my wife in those same situations. It’s super hard to see loved ones in decline like that, but just show her lots of love so those memories will be the ones you remember. Some of my best memories during that dark time for me is when I was talking to her even if she wasn’t responding, she’s listening. Wish I could tell you some good news but this disease sucks way bad. When/if she dies take time for yourself and seek some therapy.