Very cool, and thanks for the update! I'd been wondering how this would all play out.
So, if I understand correctly, tokens earned from Tribes will be fungible on Steem-Engine/Hive-Engine? As in (for example) 1 LEO token is the same regardless of whether it was earned on Steem or on Hive?
I think that's one option yes, since token owners will be able to set them independently. I will still need to figure out how to accomodate that on Scot, if they actually want that.