Futures contracts are really great to build up a stronger market. Bitcoin would benefit from it and I am pretty sure that Bitcoin futures would have a decent volume. There is some hedge fund invested in Bitcoin which would love to hedge through bitcoin futures.
Not sure about a lot of the benefits by issuing the futures contract of the bitcoin, We have seen a lot of the bankers will try to be speculated the bitcoin price. this would give affect to the bitcoin price and fundamentals. As i understand about the bankers will try to play in the crypto through the futures contract.