From what I've read so far on the subject it's a crap shoot; some people will not get worse, and others will get worse. It's a chance you are taking if you get off DMT's. My Neurologist says there is not enough trial data yet of getting off DMT's after a certain age.

I was already in my 60s when I was diagnosed. I was prescribed a DM which I took for close to 2 years.. My MRIs showed no changes since I was diagnosed and my doctor told me I could continue taking it or stop. I stopped and after 2 years there is still no change in MRIs

My father for one didn’t have a second attack after 16 until 67. When some are told they don’t need it anymore. He and his neurologist agree he should stay on it.

Any answer from any medical field concerning this subject will almost always be vague.

When I was first diagnosed at the turn of the century I read up on as much as I could find. Which led me to different types of school of thought. I literally read
( wish I keep reference ). That there is some is the medical profession that do not consider MS a disease. Go figure???