Hussar
Legend
Maybe I'm missing something - but if I wanted to run 5e in Mystara/the Known World, wouldn't I do that just by running 5e in Mystara/the Known World?
I mean, the map is there in the Isle of Dread, the Gazetteers are there on DriveThruRPG. How do Sorcerers fit into Glantri? It's your table, you make it up!
Off the top of my head:
1. How do I ascend to an immortal in 5e?
2. When my player wants to play a Diaboli, where would I find the stats for that?
Can I make it up? Sure. But if I have to make it up, then it’s not supported is it?
Which speaks to the “mile wide, inch deep” approach. It’s not terribly unreasonable to say that’s not really support in most senses. If I have to homebrew large swaths of the campaign in order to use the published setting, then isn’t it fair to say that setting has not received much support?