This will not happen, shouldn't happen, and is a terrible idea. If we had the ability to vote on this, I would vote against it.
Sure, we can roll occasionally on good ol clean MDMA and many of us won't notice a single problem from it. But to legalize it in any way is a joke, MDMA abuse is SO neurotoxic. Not to mention what qualifies as abuse is what, as little use as once a month? "medical" marijuana can be considered "medical" because people use it every day to help some health problem... (I enjoy getting high a lot too, it helps with me not being high, when I don't want to not be high, medical marijuana would fix this problem of mine, AND it won't make me look like a crackhead (the crack might though)). This may or may not be a good thing, I think it's not in many cases but it's not the worst thing ever. They certainly don't look or act like a long term Etard.
Compare what I just said about medical marijuana to your idea here of medical rolling. Can you claim MDMA is fixing some medical problem? How about you take it every day for a year, or even a month, or how about a week, and report back to us on some medical benefits you've found.