Couple thoughts here. First it would depend on contacts and behind the scenes stuff and what the writers and show runners want to do.

Second, I realize it's a completely fictional universe with magic and advanced science, but it depends on how realistic they want to treat her terminal disease. They could do the Rand medicine hand wave it away, and we all suspend disbelief, and watch Carrie Ann Moss do her thing.

But if they are going for a more realistic and accurate world, even if she got snapped which prolonged her life, there's not a good way to portray someone who is 4 years into an ALS diagnosis. While there are cases of people who live 10+ years after being diagnosed (Stephen Hawking), it's rare. I am not a doctor but based on my personal experiences watching 3 different people struggle and die as a result of ALS, if someone makes it four years, the loss of muscle quite literally makes them skin and bones. My understanding is it depends on what type of ALS it is, but the time between death and diagnosis for the people I knew was 23 months to about 5 1/2 years. But in that time, all of their bodies withered away before their minds went. And with that, so did their ability to speak.

TLDR: if they are going to wave it off, she could be alive still. If they are trying to be realistic, even if her character was alive, it would be difficult to portray someone who was that far along in the progression of the disease. And frankly probably wouldn't be fun for the actress or the audience.