Bounty campaigns will not be extinct. I'm sure that because a project of course still needs bounties to promote the project and keep calm, let's think positively.
True, the Bounty campaign will always exist if ICO is still available, and until now I still participate in the Bounty campaign, but the benefits of the Bounty for now are very low, so many say that the Bounty is dead, but actually the Bounty will still be there ...