We see that's some of the cryptocurrencies ranking level are decreased such as dogecoin before it was ranked #4 but currently I think it doesn't listed even in top #10 ranking... So can bitcoin also decrease its rank in the future or it will remain #1 rank forever?.
Bitcoin will still remain ranked 1, Bitcoin is a digital revolutionary in the future, I am sure that, some countries have also legalized cryptocurrency, such as South Korea, Japan and Singapore to be home to Bitcoin at this time, I think this will be a good step for Bitcoin to continue its journey, Bitcoin is the king mate!