BlockShares have had very low liquidity since the Augeas default disrupted funding and development. I certainly don't consider the project dead by any means. My expectation is that as NSR rises, we will have enough funding to make another attempt. @sigmike can probably offer a more expert opinion of what it will take to finish it in terms of funding, but just briefly, I'm planning on revisiting the matter in earnest once NSR is around 50 satoshis (at current Bitcoin pricing).
I remain convinced that B&C Exchange is technically viable and very much needed and useful.