Clearly, the Total supply is still 100m, this will remain so even if Bowhead Team would lock up unsold tokens for all eternity. (These data will only change UNLESS, The team would decide to burn those unsold tokens) Which means, the Total AHT Token Available for Bounty should be 1 million. Right?
Facts: Circulating Supply is the best approximation of the number of coins that are circulating in the market and in the general public's hands. Total Supply is the total amount of coins in existence right now (minus any coins that have been verifiably burned).
I do hope the team would come up with a decision that would benefit all of the involved parties; investors, bounty hunters, and the company itself. The way I see it, this can only be achieved by burning those unsold tokens.