Years? Never?

I'm due for my second follow-up MRI since being dxed and I admit I'm a little nervous. I guess I've always presumed that it's unrealistic to think that there will never be new lesions but I know when or if I hear that there are, I'm understandably going to be upset. So...I'm curious to gauge the experience of others in this department -- # of years dxed and when (or not) new lesions presented.

What, realistically speaking, is dong well? Obviously, no new lesions is doing well but is there some sort of additional standard in relative terms since this is considered to be a progressive disease? (Does this make sense? )