Hyperion have a license for 3.1, Amiga Inc actually own it, although they seem to be pining for the Fjords of Norway nowadays....
I hate all MAC Operating Systems.
Hyperion are still debating whether or not to continue support for classic Amiga systems, of which there is still quite a widespread use amongst the Amiga community. So, if the classics support is in jeopardy, I think the likelihood of support for old MAC systems like the one you've described is slim to none.
But you're right, it would be cool to breathe new life into that old hardware! 
Apple Hammer
