well yes and no. Yes there is a company that purchased the rights to minilite that is making them in England, similar to where the originals were made.
But after my short investigation, they only make them in a couple basic street versions, for street use only, and do not offer a magnesium version.
I am just a youngster here and I was not around when these wheels were made, but it was my understanding that originally you could only get them in magnesium.
Vintage engineering is making somewhat of a copy of the wheel, except for the craftsmanship is a lot better and the material is superior to what was originally offered. He also offers a light coating (pictured front and back), so they do not turn black over time.