The last github commit was on the 13th September. What are the devs currently working on?
They did nothing in the part of programming for the last three month. But they are working on legal issues. And I like the way they do it:

Yeah, if they have trouble about the legal policies, we can't see the price of Opus token increases more because it can be remove by SEC or any force has power to does that. Remember again ICO in China, we don't need to hurry and lose money.
You are wrong and they dont have any troubles, they just making sure they do everything right.
And what about SEC - Opus is not a security token, its utility token.
i think so and hope that everything is going very well
and i already told that its a long term project and i also heard about china ban will be no more on ICOs in this month or next month
but its not confirmed yet if this will happen then hopefully the price of opus will be up
opus needs to work hard to make place in music industry and currenty their are many project working on the same thing
only time will tell us which one will be successful. and i think opus will make it because opus is currently working very hard on finding artist and musicians . so i am really hopeful about opus project success