This will never happen because of few reasons. Main is that Steem will change it's code on it's own soon and Hive will go it's own way. The more time pass the more different in the code they will be and it will be a pain to make it compatible with both. Another reason is Steem was bought by one person who wanted to centralize the whole blockchain. This is against community so it's healthier for the whole blockchain to consider Hive is sort of a next step or an evolution of Steem. At least I hope so. I understand there might be many different opinions on that.
This will never happen because of few reasons. Main is that Steem will change it's code on it's own soon and Hive will go it's own way. The more time pass the more different in the code they will be and it will be a pain to make it compatible with both. Another reason is Steem was bought by one person who wanted to centralize the whole blockchain. This is against community so it's healthier for the whole blockchain to consider Hive is sort of a next step or an evolution of Steem. At least I hope so. I understand there might be many different opinions on that.