I'm at the point in my journey where all my "peers" have pretty much arrived at goal. I still have at least another 40lbs to drop to a normal BMI (I started out heavier than any of them).
But, I'm not focusing on a specific #on the scale. I'm actually looking at my loose skin and calculating the sweet spot for maximal losses while retaining a hope of not needing plastics.
At this moment, I've reached a relatively healthy weight (size 12). Any extra losses are icing. Plastics aren't icing, they are a step in the wrong direction (for me).
So, I'll keep losing, for now, but BMI means pretty much nil in the grand scheme of things.
As for probable regain.. yeah, pretty much everyone gains some. I'll take that into consideration as I near goal. Might shoot for an extra 10lbs off... but not at the risk of becoming airborn in a mild breeze...