From 2099 till 2140 (when the last satoshis will be mined) there will only be one bitcoin mined. By the end of the century, supply is virtually fixed and limited to the maximum of 21 million. For the following forty years, miners will be mining only one bitcoin...
It seems to me that the individuals most directly affected by the Bitcoin supply supply are mining workers.
Perhaps the miners will be forced to move away from the rewards they get in return for their work once the mining of 21 million bitcoins is reached and thus there may be no motivation for the miners to continue supporting the network.