I dunno. I saw the list of stuff that was subsciption only now a month ago. It listed all the big stuff like autocad, revit, inventor and all. Don't remember raser design and didn't look into it since it's part of the AutoCad package that I bought in 2016 design studio or whatever they call it. I use it every so often with drawings that are 30 years old to get them into autocad as a base.
But the biggest issue is they have now. There's only so much stuff you do in a 2d or even 3d drawing/design environment but they keep coming out with a new version every 12 months. It's to the point at least in my industry when people send drawings between offices and other companies they save it in autocad 2000 format to ensure everyone down the line can open it. No need to upgrade every year for a lot of these places and I'm guessing that has been the biggest money stream issue.
When you go to the autodesk site it just has reaster design doesn't list a year relase and if you click buy it says a year subscription at $1260 with no reference to raster design 2016 or 2017. Just a subscription.