Bitcoin will never take off without centraliziation whereas a set number of intellectuals will look after the BTC of the stupid masses. Your inferior brains are the achilles heel of Bitcoin security wise, not SHA256, not RIPEMD-160 and not the ECDSA which the NSA may build a billion dollar computer to record all the sounds that your processor makes while generating and crack.
This or really easy and simple device (maybe like trezor not sure yet coz i don't use trezor), to make safe transactions without risk.
It would have to be more heavily consumerised and dumbed down for the masses, perhaps even the name changed and offer new "state of the art animations" and sounds that go DINGDINGDING once you've sent or received a payment. Very similar to iPhones.