Nothing is happening... 
It's happening!... ?? https://recode.net/2015/09/15/nine-of-the-worlds-biggest-banks-form-blockchain-partnership/
Yeah, right!!!
Does this really mean anything for Bitcoin? They are creating a competing platform to have a private blockchain, but surely that blockchain is going to be centralized and secretive... .and then in the end, to what extent would it incorporate bitcoin's infrastructure at all?
The main thrust of a similar project that i'm aware of is that it would be decentralized between the participating banks - they would all carry out verifiable POW activity (mining) which will secure the network for all participants. There would be an initial release of tokens, after which no more would be created (absent a need to expand the network) Transaction fee's would be a form of demurrage, creating an internal market for the tokens among the participants. But the tokens would not be a currency in themselves - they would simply represent a real world asset, be it currency, trade finance, bonds, shares, etc. Banks would effectively settle among themselves with the same token, over and over again.
It would have zero impact on bitcoin. It would more than likely be employed over a leased line network similar to SWIFT, but there is no reason why it couldn't use the public internet at some point. I cant see how it could use the same Blockcain as bitcoin - there is no technical need for them to do so.
