crowdfunding and peer to peer lending
this is what will kill banks
bitcoin will facilitate this, poeple won't loan barrow BTC, ( thats just crazy seeing how price swings are wild, and bitcoin is deflationary ), But they will use the BTC highway.
its going to take time, and more adoption, but it appears to already be happening
poeple are refinancing loans, by leveraging the "BTC highway"
check this out:
https://btcjam.com/listings/55943-credit-card-refinancingits a tiny market right now, but the idea is good, i think this can really work on a larger scale.