I dont think so. Banks are centralized while bitcoin is the opposite of banks. What will happen to banks if they start adopting blockchain technology? These two are very different and against each other. For that to be happen, banks should be decentralized in able to work well. I really doubt this will be happen even in the future.
Nope, and it means blockchain doesn't work if the bank wasn't using the decentralized system? It wrong at all. Blockchain is a system and it can be customized.
Why a lot of press or media were releasing some news about the blockchain has researched by the conventional institution?
Your word wasn't making sense.