First, accepting crytpo means regulations, there should be a discussion between courts and governments about the taxes.
Second, ICO projects will get into the investigation like SEC is doing now, but this one would be more widespreaded.
Third, more and more exchanges would come and new DEX'es would open CEX also, to get fiat.
Fourth, there will be war between banks and governments.
Banks would not fight with individuals, they just robs them, but they can fight with governments.