A new motor is on the way. I want to see about improving motor control capabilities in Typica and I'll have more confidence in code changes if I have real hardware to test against. Basic control options already exist, but they're very generic and I haven't heard much feedback about how practical those really are.
Note: I'm not recommending that anybody mod their equipment unless they really know what they're doing, but most roaster makers will customize if you know what to ask for.