The future of bitcoin is not pridectable completly a mistry because honestly it is the first time of something like bitcoin exist and as we know all the good thinks have some bad side too so its hard to guess what will come in the near future from it
I am unable to completely agree with the you, still I do not have any doubts about the future of bitcoin system. Because bitcoin system has all the flexibility to adopt future requirements. So, based on future developments and requirements bitcoin will be enhanced to suit them.