As subject goes, is Bitcoin the maximum version?
Is it still possible to develop it?
or
Can we still expect better coin than Bitcoin?
Bitcoin maybe popular but its technology is falling behind other altcoin so developer wanting Bitcoin to be competitive and at the same time address several issues regarding its transaction time and other stuff, so they intend to further develop Bitcoin. If you have read the
recent thread created by Jet Cash, you will see the possible update of Bitcoin.