I think that the time of Gold is gradually demishing in terms of adoptions and marketcap. The bitcoin marketcap is increasing on the daily basis, a level achieved within 10years of it's existing. Gold has not grown within this short space of it's existence, and the adoptions of gold in recent time can't be compared to the bitcoin.
It had to conclude that bitcoin will replace gold but anything can happen, no body knew that bitcoin will develop to this level, and more records will be created in few years to come. In opinion, bitcoin is capable to replace gold but may be in near future.