The bitcoin won’t be the currency of the future. This has various reasons. Some reasons might dissolve in the near future, but only logical outcome is that the bitcoin eventually will only be the blockchain, but not the stored value anymore. One can only hope that this is done gradually, but these things usually happen very sudden and violently leaving a big impact on the world. This will not happen tomorrow, so in the short term future and possibly in our lifetime the bitcoin could be implemented as world currency, but it will die.