I sure would like to see some new development with this coin. I had high hopes for it when it came out, followed it for a while, got away from it, checked back in, and it looks the same as it ever was...
If you have some specific ideas or suggestions you could go over to the gitter:
https://gitter.im/BlackCoin_HubJanko33bd and Vinceblk are both almost always available there.
This bitcointalk thread is fairly ignored.