It can even be one of the older Megadrives, like
this one slightly modified and with a new case.
Are any of the of-the-shelf parts still avilable?
Maybe they'll be making their own parts.
I can't be sure for now, I'll just wait to see pictures of the guts after the release.
Would be nice if they could also produce new cartridges.
Maybe this could push some of the prices down.