Hence, haven said all this I think the next step of Bitcoin should be targeted at becoming a central world currency having it's own bank and printed in all countries for use. Then it can be a centralized currency for global use and not only on the digital world
That will not be a good reason bitcoin is existing, with how decentralized it is and how it is generally, it is like a central currency because anyone can send bitcoin to anyone in any country at anytime, this is what fiat can not offer. We do not need bitcoin to be printed and have a centralized bank because bitcoin true existence do not need banks to support it.